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Finding the Fourth Proportional to 73,872,497.80, 110,808,746.70 and 43,261,496.20

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Solution

The fourth proportional to 73,872,497.80, 110,808,746.70 and 43,261,496.20 is: 64,892,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,872,497.80 : 110,808,746.70 = 43,261,496.20 : x
  2. Step 2: Convert to fraction form
    73,872,497.80/110,808,746.70 = 43,261,496.20/x
  3. Step 3: Cross multiply
    73,872,497.80x = 110,808,746.70 × 43,261,496.20
  4. Step 4: Simplify right side
    73,872,497.80x = 4,793,752,174,288,813
  5. Step 5: Solve for x
    x = 4,793,752,174,288,813/73,872,497.80
  6. Step 6: Final answer
    x = 64,892,244.30

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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.