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Finding the Fourth Proportional to 88,909.30, 133,315.35 and 36,259.30

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Solution

The fourth proportional to 88,909.30, 133,315.35 and 36,259.30 is: 54,369.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,909.30 : 133,315.35 = 36,259.30 : x
  2. Step 2: Convert to fraction form
    88,909.30/133,315.35 = 36,259.30/x
  3. Step 3: Cross multiply
    88,909.30x = 133,315.35 × 36,259.30
  4. Step 4: Simplify right side
    88,909.30x = 4,833,921,270.26
  5. Step 5: Solve for x
    x = 4,833,921,270.26/88,909.30
  6. Step 6: Final answer
    x = 54,369.13

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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.