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Finding the Fourth Proportional to 92,710.20, 139,211.10 and 53,344.20

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Solution

The fourth proportional to 92,710.20, 139,211.10 and 53,344.20 is: 80,100.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,710.20 : 139,211.10 = 53,344.20 : x
  2. Step 2: Convert to fraction form
    92,710.20/139,211.10 = 53,344.20/x
  3. Step 3: Cross multiply
    92,710.20x = 139,211.10 × 53,344.20
  4. Step 4: Simplify right side
    92,710.20x = 7,426,104,760.62
  5. Step 5: Solve for x
    x = 7,426,104,760.62/92,710.20
  6. Step 6: Final answer
    x = 80,100.19

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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.