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Finding the Fourth Proportional to 102,045.60, 152,776.80 and 62,679.60

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Solution

The fourth proportional to 102,045.60, 152,776.80 and 62,679.60 is: 93,840.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,045.60 : 152,776.80 = 62,679.60 : x
  2. Step 2: Convert to fraction form
    102,045.60/152,776.80 = 62,679.60/x
  3. Step 3: Cross multiply
    102,045.60x = 152,776.80 × 62,679.60
  4. Step 4: Simplify right side
    102,045.60x = 9,575,988,713.28
  5. Step 5: Solve for x
    x = 9,575,988,713.28/102,045.60
  6. Step 6: Final answer
    x = 93,840.29

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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.