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Finding the Fourth Proportional to 133,931,902.60, 200,897,999.70 and 53,152,870.60

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Solution

The fourth proportional to 133,931,902.60, 200,897,999.70 and 53,152,870.60 is: 79,729,363.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,931,902.60 : 200,897,999.70 = 53,152,870.60 : x
  2. Step 2: Convert to fraction form
    133,931,902.60/200,897,999.70 = 53,152,870.60/x
  3. Step 3: Cross multiply
    133,931,902.60x = 200,897,999.70 × 53,152,870.60
  4. Step 4: Simplify right side
    133,931,902.60x = 10,678,305,381,852,938
  5. Step 5: Solve for x
    x = 10,678,305,381,852,938/133,931,902.60
  6. Step 6: Final answer
    x = 79,729,363.76

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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.