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Finding the Fourth Proportional to 65,199,706.40, 97,799,559.60 and 60,272,832.80

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Solution

The fourth proportional to 65,199,706.40, 97,799,559.60 and 60,272,832.80 is: 90,409,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,199,706.40 : 97,799,559.60 = 60,272,832.80 : x
  2. Step 2: Convert to fraction form
    65,199,706.40/97,799,559.60 = 60,272,832.80/x
  3. Step 3: Cross multiply
    65,199,706.40x = 97,799,559.60 × 60,272,832.80
  4. Step 4: Simplify right side
    65,199,706.40x = 5,894,656,503,684,434
  5. Step 5: Solve for x
    x = 5,894,656,503,684,434/65,199,706.40
  6. Step 6: Final answer
    x = 90,409,249.20

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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.