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Finding the Fourth Proportional to 71,046.92, 98,057.37 and 42,368.33

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Solution

The fourth proportional to 71,046.92, 98,057.37 and 42,368.33 is: 58,475.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,046.92 : 98,057.37 = 42,368.33 : x
  2. Step 2: Convert to fraction form
    71,046.92/98,057.37 = 42,368.33/x
  3. Step 3: Cross multiply
    71,046.92x = 98,057.37 × 42,368.33
  4. Step 4: Simplify right side
    71,046.92x = 4,154,526,520.81
  5. Step 5: Solve for x
    x = 4,154,526,520.81/71,046.92
  6. Step 6: Final answer
    x = 58,475.82

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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.