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Finding the Fourth Proportional to 116,916.78, 175,331.84 and 42,016.74

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Solution

The fourth proportional to 116,916.78, 175,331.84 and 42,016.74 is: 63,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,916.78 : 175,331.84 = 42,016.74 : x
  2. Step 2: Convert to fraction form
    116,916.78/175,331.84 = 42,016.74/x
  3. Step 3: Cross multiply
    116,916.78x = 175,331.84 × 42,016.74
  4. Step 4: Simplify right side
    116,916.78x = 7,366,872,335.00
  5. Step 5: Solve for x
    x = 7,366,872,335.00/116,916.78
  6. Step 6: Final answer
    x = 63,009.54

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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.