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Finding the Fourth Proportional to 72,293.66, 108,505.30 and 60,521.12

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Solution

The fourth proportional to 72,293.66, 108,505.30 and 60,521.12 is: 90,835.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,293.66 : 108,505.30 = 60,521.12 : x
  2. Step 2: Convert to fraction form
    72,293.66/108,505.30 = 60,521.12/x
  3. Step 3: Cross multiply
    72,293.66x = 108,505.30 × 60,521.12
  4. Step 4: Simplify right side
    72,293.66x = 6,566,862,281.94
  5. Step 5: Solve for x
    x = 6,566,862,281.94/72,293.66
  6. Step 6: Final answer
    x = 90,835.94

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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.