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Finding the Fourth Proportional to 88,658.10, 133,030.35 and 67,590.90

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Solution

The fourth proportional to 88,658.10, 133,030.35 and 67,590.90 is: 101,419.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,658.10 : 133,030.35 = 67,590.90 : x
  2. Step 2: Convert to fraction form
    88,658.10/133,030.35 = 67,590.90/x
  3. Step 3: Cross multiply
    88,658.10x = 133,030.35 × 67,590.90
  4. Step 4: Simplify right side
    88,658.10x = 8,991,641,083.82
  5. Step 5: Solve for x
    x = 8,991,641,083.82/88,658.10
  6. Step 6: Final answer
    x = 101,419.28

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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.