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Finding the Fourth Proportional to 144,046.80, 215,681.40 and 144,046.80

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Solution

The fourth proportional to 144,046.80, 215,681.40 and 144,046.80 is: 215,681.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,046.80 : 215,681.40 = 144,046.80 : x
  2. Step 2: Convert to fraction form
    144,046.80/215,681.40 = 144,046.80/x
  3. Step 3: Cross multiply
    144,046.80x = 215,681.40 × 144,046.80
  4. Step 4: Simplify right side
    144,046.80x = 31,068,215,489.52
  5. Step 5: Solve for x
    x = 31,068,215,489.52/144,046.80
  6. Step 6: Final answer
    x = 215,681.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.