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Finding the Fourth Proportional to 141,929,430.30, 212,894,145.45 and 141,929,430.30

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Solution

The fourth proportional to 141,929,430.30, 212,894,145.45 and 141,929,430.30 is: 212,894,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,929,430.30 : 212,894,145.45 = 141,929,430.30 : x
  2. Step 2: Convert to fraction form
    141,929,430.30/212,894,145.45 = 141,929,430.30/x
  3. Step 3: Cross multiply
    141,929,430.30x = 212,894,145.45 × 141,929,430.30
  4. Step 4: Simplify right side
    141,929,430.30x = 30,215,944,777,923,836
  5. Step 5: Solve for x
    x = 30,215,944,777,923,836/141,929,430.30
  6. Step 6: Final answer
    x = 212,894,145.45

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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.