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Finding the Fourth Proportional to 187,344.40, 280,885.20 and 69,000.40

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Solution

The fourth proportional to 187,344.40, 280,885.20 and 69,000.40 is: 103,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,344.40 : 280,885.20 = 69,000.40 : x
  2. Step 2: Convert to fraction form
    187,344.40/280,885.20 = 69,000.40/x
  3. Step 3: Cross multiply
    187,344.40x = 280,885.20 × 69,000.40
  4. Step 4: Simplify right side
    187,344.40x = 19,381,191,154.08
  5. Step 5: Solve for x
    x = 19,381,191,154.08/187,344.40
  6. Step 6: Final answer
    x = 103,452.20

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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.