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Finding the Fourth Proportional to 90,373.50, 124,706.49 and 52,136.52

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Solution

The fourth proportional to 90,373.50, 124,706.49 and 52,136.52 is: 71,943.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,373.50 : 124,706.49 = 52,136.52 : x
  2. Step 2: Convert to fraction form
    90,373.50/124,706.49 = 52,136.52/x
  3. Step 3: Cross multiply
    90,373.50x = 124,706.49 × 52,136.52
  4. Step 4: Simplify right side
    90,373.50x = 6,501,762,410.01
  5. Step 5: Solve for x
    x = 6,501,762,410.01/90,373.50
  6. Step 6: Final answer
    x = 71,943.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.