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Finding the Fourth Proportional to 60,239.70, 90,359.55 and 54,334.80

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Solution

The fourth proportional to 60,239.70, 90,359.55 and 54,334.80 is: 81,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,239.70 : 90,359.55 = 54,334.80 : x
  2. Step 2: Convert to fraction form
    60,239.70/90,359.55 = 54,334.80/x
  3. Step 3: Cross multiply
    60,239.70x = 90,359.55 × 54,334.80
  4. Step 4: Simplify right side
    60,239.70x = 4,909,668,077.34
  5. Step 5: Solve for x
    x = 4,909,668,077.34/60,239.70
  6. Step 6: Final answer
    x = 81,502.20

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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.