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Finding the Fourth Proportional to 62,261, 93,391.56 and 20,176.40

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Solution

The fourth proportional to 62,261, 93,391.56 and 20,176.40 is: 30,264.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,261 : 93,391.56 = 20,176.40 : x
  2. Step 2: Convert to fraction form
    62,261/93,391.56 = 20,176.40/x
  3. Step 3: Cross multiply
    62,261x = 93,391.56 × 20,176.40
  4. Step 4: Simplify right side
    62,261x = 1,884,305,471.18
  5. Step 5: Solve for x
    x = 1,884,305,471.18/62,261
  6. Step 6: Final answer
    x = 30,264.62

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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.