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Finding the Fourth Proportional to 114,139.80, 157,531.23 and 75,900.11

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Solution

The fourth proportional to 114,139.80, 157,531.23 and 75,900.11 is: 104,754.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,139.80 : 157,531.23 = 75,900.11 : x
  2. Step 2: Convert to fraction form
    114,139.80/157,531.23 = 75,900.11/x
  3. Step 3: Cross multiply
    114,139.80x = 157,531.23 × 75,900.11
  4. Step 4: Simplify right side
    114,139.80x = 11,956,636,897.78
  5. Step 5: Solve for x
    x = 11,956,636,897.78/114,139.80
  6. Step 6: Final answer
    x = 104,754.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.