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Finding the Fourth Proportional to 52,853,430.80, 79,280,146.20 and 52,853,430.80

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Solution

The fourth proportional to 52,853,430.80, 79,280,146.20 and 52,853,430.80 is: 79,280,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,853,430.80 : 79,280,146.20 = 52,853,430.80 : x
  2. Step 2: Convert to fraction form
    52,853,430.80/79,280,146.20 = 52,853,430.80/x
  3. Step 3: Cross multiply
    52,853,430.80x = 79,280,146.20 × 52,853,430.80
  4. Step 4: Simplify right side
    52,853,430.80x = 4,190,227,720,995,583
  5. Step 5: Solve for x
    x = 4,190,227,720,995,583/52,853,430.80
  6. Step 6: Final answer
    x = 79,280,146.20

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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.