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Finding the Fourth Proportional to 52,948.32, 79,432.08 and 43,174.08

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Solution

The fourth proportional to 52,948.32, 79,432.08 and 43,174.08 is: 64,768.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,948.32 : 79,432.08 = 43,174.08 : x
  2. Step 2: Convert to fraction form
    52,948.32/79,432.08 = 43,174.08/x
  3. Step 3: Cross multiply
    52,948.32x = 79,432.08 × 43,174.08
  4. Step 4: Simplify right side
    52,948.32x = 3,429,406,976.49
  5. Step 5: Solve for x
    x = 3,429,406,976.49/52,948.32
  6. Step 6: Final answer
    x = 64,768.95

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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.