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Finding the Fourth Proportional to 65,203,987.60, 97,805,981.40 and 43,704,902.80

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Solution

The fourth proportional to 65,203,987.60, 97,805,981.40 and 43,704,902.80 is: 65,557,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,203,987.60 : 97,805,981.40 = 43,704,902.80 : x
  2. Step 2: Convert to fraction form
    65,203,987.60/97,805,981.40 = 43,704,902.80/x
  3. Step 3: Cross multiply
    65,203,987.60x = 97,805,981.40 × 43,704,902.80
  4. Step 4: Simplify right side
    65,203,987.60x = 4,274,600,910,345,608
  5. Step 5: Solve for x
    x = 4,274,600,910,345,608/65,203,987.60
  6. Step 6: Final answer
    x = 65,557,354.20

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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.