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Finding the Fourth Proportional to 72,000.80, 99,324.24 and 59,098.40

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Solution

The fourth proportional to 72,000.80, 99,324.24 and 59,098.40 is: 81,525.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,000.80 : 99,324.24 = 59,098.40 : x
  2. Step 2: Convert to fraction form
    72,000.80/99,324.24 = 59,098.40/x
  3. Step 3: Cross multiply
    72,000.80x = 99,324.24 × 59,098.40
  4. Step 4: Simplify right side
    72,000.80x = 5,869,903,665.22
  5. Step 5: Solve for x
    x = 5,869,903,665.22/72,000.80
  6. Step 6: Final answer
    x = 81,525.53

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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.