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Finding the Fourth Proportional to 133,851,373.60, 200,909,770.80 and 65,770,938.40

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Solution

The fourth proportional to 133,851,373.60, 200,909,770.80 and 65,770,938.40 is: 98,721,617.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,851,373.60 : 200,909,770.80 = 65,770,938.40 : x
  2. Step 2: Convert to fraction form
    133,851,373.60/200,909,770.80 = 65,770,938.40/x
  3. Step 3: Cross multiply
    133,851,373.60x = 200,909,770.80 × 65,770,938.40
  4. Step 4: Simplify right side
    133,851,373.60x = 13,214,024,159,244,920
  5. Step 5: Solve for x
    x = 13,214,024,159,244,920/133,851,373.60
  6. Step 6: Final answer
    x = 98,721,617.89

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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.