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Finding the Fourth Proportional to 87,655.60, 131,483.40 and 60,828.40

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Solution

The fourth proportional to 87,655.60, 131,483.40 and 60,828.40 is: 91,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,655.60 : 131,483.40 = 60,828.40 : x
  2. Step 2: Convert to fraction form
    87,655.60/131,483.40 = 60,828.40/x
  3. Step 3: Cross multiply
    87,655.60x = 131,483.40 × 60,828.40
  4. Step 4: Simplify right side
    87,655.60x = 7,997,924,848.56
  5. Step 5: Solve for x
    x = 7,997,924,848.56/87,655.60
  6. Step 6: Final answer
    x = 91,242.60

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1.5x scale

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.