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Finding the Fourth Proportional to 62,111.80, 93,167.70 and 49,427.20

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Solution

The fourth proportional to 62,111.80, 93,167.70 and 49,427.20 is: 74,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,111.80 : 93,167.70 = 49,427.20 : x
  2. Step 2: Convert to fraction form
    62,111.80/93,167.70 = 49,427.20/x
  3. Step 3: Cross multiply
    62,111.80x = 93,167.70 × 49,427.20
  4. Step 4: Simplify right side
    62,111.80x = 4,605,018,541.44
  5. Step 5: Solve for x
    x = 4,605,018,541.44/62,111.80
  6. Step 6: Final answer
    x = 74,140.80

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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.