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Finding the Fourth Proportional to 141,639,000.20, 212,122,577.10 and 141,639,000.20

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Solution

The fourth proportional to 141,639,000.20, 212,122,577.10 and 141,639,000.20 is: 212,122,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,639,000.20 : 212,122,577.10 = 141,639,000.20 : x
  2. Step 2: Convert to fraction form
    141,639,000.20/212,122,577.10 = 141,639,000.20/x
  3. Step 3: Cross multiply
    141,639,000.20x = 212,122,577.10 × 141,639,000.20
  4. Step 4: Simplify right side
    141,639,000.20x = 30,044,829,740,291,412
  5. Step 5: Solve for x
    x = 30,044,829,740,291,412/141,639,000.20
  6. Step 6: Final answer
    x = 212,122,577.10

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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.