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Finding the Fourth Proportional to 133,059,408.80, 199,738,412.40 and 102,900,970.40

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Solution

The fourth proportional to 133,059,408.80, 199,738,412.40 and 102,900,970.40 is: 154,466,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,059,408.80 : 199,738,412.40 = 102,900,970.40 : x
  2. Step 2: Convert to fraction form
    133,059,408.80/199,738,412.40 = 102,900,970.40/x
  3. Step 3: Cross multiply
    133,059,408.80x = 199,738,412.40 × 102,900,970.40
  4. Step 4: Simplify right side
    133,059,408.80x = 20,553,276,462,115,396
  5. Step 5: Solve for x
    x = 20,553,276,462,115,396/133,059,408.80
  6. Step 6: Final answer
    x = 154,466,915.55

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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.