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Finding the Fourth Proportional to 72,432.45, 108,519.08 and 62,064.45

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Solution

The fourth proportional to 72,432.45, 108,519.08 and 62,064.45 is: 92,985.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,432.45 : 108,519.08 = 62,064.45 : x
  2. Step 2: Convert to fraction form
    72,432.45/108,519.08 = 62,064.45/x
  3. Step 3: Cross multiply
    72,432.45x = 108,519.08 × 62,064.45
  4. Step 4: Simplify right side
    72,432.45x = 6,735,176,704.38
  5. Step 5: Solve for x
    x = 6,735,176,704.38/72,432.45
  6. Step 6: Final answer
    x = 92,985.63

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1.5x scale

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.