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Finding the Fourth Proportional to 88,730.40, 133,122.28 and 53,230.80

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Solution

The fourth proportional to 88,730.40, 133,122.28 and 53,230.80 is: 79,862.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,730.40 : 133,122.28 = 53,230.80 : x
  2. Step 2: Convert to fraction form
    88,730.40/133,122.28 = 53,230.80/x
  3. Step 3: Cross multiply
    88,730.40x = 133,122.28 × 53,230.80
  4. Step 4: Simplify right side
    88,730.40x = 7,086,205,462.22
  5. Step 5: Solve for x
    x = 7,086,205,462.22/88,730.40
  6. Step 6: Final answer
    x = 79,862.21

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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.