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Finding the Fourth Proportional to 67,068,002.60, 100,602,003.90 and 63,879,356.60

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Solution

The fourth proportional to 67,068,002.60, 100,602,003.90 and 63,879,356.60 is: 95,819,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,002.60 : 100,602,003.90 = 63,879,356.60 : x
  2. Step 2: Convert to fraction form
    67,068,002.60/100,602,003.90 = 63,879,356.60/x
  3. Step 3: Cross multiply
    67,068,002.60x = 100,602,003.90 × 63,879,356.60
  4. Step 4: Simplify right side
    67,068,002.60x = 6,426,391,281,802,691
  5. Step 5: Solve for x
    x = 6,426,391,281,802,691/67,068,002.60
  6. Step 6: Final answer
    x = 95,819,034.90

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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.