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Finding the Fourth Proportional to 100,104,151.80, 140,448,143.40 and 100,104,151.80

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Solution

The fourth proportional to 100,104,151.80, 140,448,143.40 and 100,104,151.80 is: 140,448,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,104,151.80 : 140,448,143.40 = 100,104,151.80 : x
  2. Step 2: Convert to fraction form
    100,104,151.80/140,448,143.40 = 100,104,151.80/x
  3. Step 3: Cross multiply
    100,104,151.80x = 140,448,143.40 × 100,104,151.80
  4. Step 4: Simplify right side
    100,104,151.80x = 14,059,442,266,941,768
  5. Step 5: Solve for x
    x = 14,059,442,266,941,768/100,104,151.80
  6. Step 6: Final answer
    x = 140,448,143.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.