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Finding the Fourth Proportional to 100,627.60, 151,073.30 and 67,495.90

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Solution

The fourth proportional to 100,627.60, 151,073.30 and 67,495.90 is: 101,332.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,627.60 : 151,073.30 = 67,495.90 : x
  2. Step 2: Convert to fraction form
    100,627.60/151,073.30 = 67,495.90/x
  3. Step 3: Cross multiply
    100,627.60x = 151,073.30 × 67,495.90
  4. Step 4: Simplify right side
    100,627.60x = 10,196,828,349.47
  5. Step 5: Solve for x
    x = 10,196,828,349.47/100,627.60
  6. Step 6: Final answer
    x = 101,332.32

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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.