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Finding the Fourth Proportional to 100,898.60, 151,347.90 and 88,610.60

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Solution

The fourth proportional to 100,898.60, 151,347.90 and 88,610.60 is: 132,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,898.60 : 151,347.90 = 88,610.60 : x
  2. Step 2: Convert to fraction form
    100,898.60/151,347.90 = 88,610.60/x
  3. Step 3: Cross multiply
    100,898.60x = 151,347.90 × 88,610.60
  4. Step 4: Simplify right side
    100,898.60x = 13,411,028,227.74
  5. Step 5: Solve for x
    x = 13,411,028,227.74/100,898.60
  6. Step 6: Final answer
    x = 132,915.90

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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.