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Finding the Fourth Proportional to 68,779.61, 103,184.90 and 24,406.28

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Solution

The fourth proportional to 68,779.61, 103,184.90 and 24,406.28 is: 36,614.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,779.61 : 103,184.90 = 24,406.28 : x
  2. Step 2: Convert to fraction form
    68,779.61/103,184.90 = 24,406.28/x
  3. Step 3: Cross multiply
    68,779.61x = 103,184.90 × 24,406.28
  4. Step 4: Simplify right side
    68,779.61x = 2,518,359,561.17
  5. Step 5: Solve for x
    x = 2,518,359,561.17/68,779.61
  6. Step 6: Final answer
    x = 36,614.91

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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.