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Finding the Fourth Proportional to 60,520.40, 90,601.40 and 45,006.80

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Solution

The fourth proportional to 60,520.40, 90,601.40 and 45,006.80 is: 67,376.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,520.40 : 90,601.40 = 45,006.80 : x
  2. Step 2: Convert to fraction form
    60,520.40/90,601.40 = 45,006.80/x
  3. Step 3: Cross multiply
    60,520.40x = 90,601.40 × 45,006.80
  4. Step 4: Simplify right side
    60,520.40x = 4,077,679,089.52
  5. Step 5: Solve for x
    x = 4,077,679,089.52/60,520.40
  6. Step 6: Final answer
    x = 67,376.94

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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.