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Finding the Fourth Proportional to 97,366.40, 145,891.20 and 88,035.20

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Solution

The fourth proportional to 97,366.40, 145,891.20 and 88,035.20 is: 131,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,366.40 : 145,891.20 = 88,035.20 : x
  2. Step 2: Convert to fraction form
    97,366.40/145,891.20 = 88,035.20/x
  3. Step 3: Cross multiply
    97,366.40x = 145,891.20 × 88,035.20
  4. Step 4: Simplify right side
    97,366.40x = 12,843,560,970.24
  5. Step 5: Solve for x
    x = 12,843,560,970.24/97,366.40
  6. Step 6: Final answer
    x = 131,909.58

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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.