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Finding the Fourth Proportional to 210,687,471.20, 295,164,013.60 and 210,687,471.20

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Solution

The fourth proportional to 210,687,471.20, 295,164,013.60 and 210,687,471.20 is: 295,164,013.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,687,471.20 : 295,164,013.60 = 210,687,471.20 : x
  2. Step 2: Convert to fraction form
    210,687,471.20/295,164,013.60 = 210,687,471.20/x
  3. Step 3: Cross multiply
    210,687,471.20x = 295,164,013.60 × 210,687,471.20
  4. Step 4: Simplify right side
    210,687,471.20x = 62,187,359,614,626,408
  5. Step 5: Solve for x
    x = 62,187,359,614,626,408/210,687,471.20
  6. Step 6: Final answer
    x = 295,164,013.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.