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Finding the Fourth Proportional to 94,732.80, 142,150.40 and 42,150.40

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Solution

The fourth proportional to 94,732.80, 142,150.40 and 42,150.40 is: 63,248.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,732.80 : 142,150.40 = 42,150.40 : x
  2. Step 2: Convert to fraction form
    94,732.80/142,150.40 = 42,150.40/x
  3. Step 3: Cross multiply
    94,732.80x = 142,150.40 × 42,150.40
  4. Step 4: Simplify right side
    94,732.80x = 5,991,696,220.16
  5. Step 5: Solve for x
    x = 5,991,696,220.16/94,732.80
  6. Step 6: Final answer
    x = 63,248.38

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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.