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Finding the Fourth Proportional to 8,871,245.80, 13,306,868.70 and 4,840,167.40

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Solution

The fourth proportional to 8,871,245.80, 13,306,868.70 and 4,840,167.40 is: 7,260,251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871,245.80 : 13,306,868.70 = 4,840,167.40 : x
  2. Step 2: Convert to fraction form
    8,871,245.80/13,306,868.70 = 4,840,167.40/x
  3. Step 3: Cross multiply
    8,871,245.80x = 13,306,868.70 × 4,840,167.40
  4. Step 4: Simplify right side
    8,871,245.80x = 64,407,472,077,820.38
  5. Step 5: Solve for x
    x = 64,407,472,077,820.38/8,871,245.80
  6. Step 6: Final answer
    x = 7,260,251.10

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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.