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Finding the Fourth Proportional to 173,613.20, 260,419.80 and 62,779.28

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Solution

The fourth proportional to 173,613.20, 260,419.80 and 62,779.28 is: 94,168.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,613.20 : 260,419.80 = 62,779.28 : x
  2. Step 2: Convert to fraction form
    173,613.20/260,419.80 = 62,779.28/x
  3. Step 3: Cross multiply
    173,613.20x = 260,419.80 × 62,779.28
  4. Step 4: Simplify right side
    173,613.20x = 16,348,967,541.74
  5. Step 5: Solve for x
    x = 16,348,967,541.74/173,613.20
  6. Step 6: Final answer
    x = 94,168.92

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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.