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Finding the Fourth Proportional to 97,711.60, 146,470.20 and 45,029.20

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Solution

The fourth proportional to 97,711.60, 146,470.20 and 45,029.20 is: 67,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,711.60 : 146,470.20 = 45,029.20 : x
  2. Step 2: Convert to fraction form
    97,711.60/146,470.20 = 45,029.20/x
  3. Step 3: Cross multiply
    97,711.60x = 146,470.20 × 45,029.20
  4. Step 4: Simplify right side
    97,711.60x = 6,595,435,929.84
  5. Step 5: Solve for x
    x = 6,595,435,929.84/97,711.60
  6. Step 6: Final answer
    x = 67,499.01

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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.