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Finding the Fourth Proportional to 60,459.20, 90,656.40 and 25,359.20

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Solution

The fourth proportional to 60,459.20, 90,656.40 and 25,359.20 is: 38,025.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,459.20 : 90,656.40 = 25,359.20 : x
  2. Step 2: Convert to fraction form
    60,459.20/90,656.40 = 25,359.20/x
  3. Step 3: Cross multiply
    60,459.20x = 90,656.40 × 25,359.20
  4. Step 4: Simplify right side
    60,459.20x = 2,298,973,778.88
  5. Step 5: Solve for x
    x = 2,298,973,778.88/60,459.20
  6. Step 6: Final answer
    x = 38,025.21

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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.