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Finding the Fourth Proportional to 67,373,973.60, 100,872,003.60 and 65,484,405.60

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Solution

The fourth proportional to 67,373,973.60, 100,872,003.60 and 65,484,405.60 is: 98,042,951.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,373,973.60 : 100,872,003.60 = 65,484,405.60 : x
  2. Step 2: Convert to fraction form
    67,373,973.60/100,872,003.60 = 65,484,405.60/x
  3. Step 3: Cross multiply
    67,373,973.60x = 100,872,003.60 × 65,484,405.60
  4. Step 4: Simplify right side
    67,373,973.60x = 6,605,543,197,427,060
  5. Step 5: Solve for x
    x = 6,605,543,197,427,060/67,373,973.60
  6. Step 6: Final answer
    x = 98,042,951.08

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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.