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Finding the Fourth Proportional to 234,693.65, 351,899.89 and 74,700.47

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Solution

The fourth proportional to 234,693.65, 351,899.89 and 74,700.47 is: 112,005.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,693.65 : 351,899.89 = 74,700.47 : x
  2. Step 2: Convert to fraction form
    234,693.65/351,899.89 = 74,700.47/x
  3. Step 3: Cross multiply
    234,693.65x = 351,899.89 × 74,700.47
  4. Step 4: Simplify right side
    234,693.65x = 26,287,086,802.45
  5. Step 5: Solve for x
    x = 26,287,086,802.45/234,693.65
  6. Step 6: Final answer
    x = 112,005.96

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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.