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Finding the Fourth Proportional to 67,374,489.60, 100,872,777.60 and 65,484,921.60

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Solution

The fourth proportional to 67,374,489.60, 100,872,777.60 and 65,484,921.60 is: 98,043,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,374,489.60 : 100,872,777.60 = 65,484,921.60 : x
  2. Step 2: Convert to fraction form
    67,374,489.60/100,872,777.60 = 65,484,921.60/x
  3. Step 3: Cross multiply
    67,374,489.60x = 100,872,777.60 × 65,484,921.60
  4. Step 4: Simplify right side
    67,374,489.60x = 6,605,645,932,710,236
  5. Step 5: Solve for x
    x = 6,605,645,932,710,236/67,374,489.60
  6. Step 6: Final answer
    x = 98,043,725.03

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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.