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Finding the Fourth Proportional to 68,985,625.60, 103,478,438.40 and 23,548,902.40

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Solution

The fourth proportional to 68,985,625.60, 103,478,438.40 and 23,548,902.40 is: 35,323,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,985,625.60 : 103,478,438.40 = 23,548,902.40 : x
  2. Step 2: Convert to fraction form
    68,985,625.60/103,478,438.40 = 23,548,902.40/x
  3. Step 3: Cross multiply
    68,985,625.60x = 103,478,438.40 × 23,548,902.40
  4. Step 4: Simplify right side
    68,985,625.60x = 2,436,803,646,386,012
  5. Step 5: Solve for x
    x = 2,436,803,646,386,012/68,985,625.60
  6. Step 6: Final answer
    x = 35,323,353.60

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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.