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Finding the Fourth Proportional to 64,110.60, 88,470.60 and 45,018.12

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Solution

The fourth proportional to 64,110.60, 88,470.60 and 45,018.12 is: 62,123.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,110.60 : 88,470.60 = 45,018.12 : x
  2. Step 2: Convert to fraction form
    64,110.60/88,470.60 = 45,018.12/x
  3. Step 3: Cross multiply
    64,110.60x = 88,470.60 × 45,018.12
  4. Step 4: Simplify right side
    64,110.60x = 3,982,780,087.27
  5. Step 5: Solve for x
    x = 3,982,780,087.27/64,110.60
  6. Step 6: Final answer
    x = 62,123.58

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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.