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Finding the Fourth Proportional to 136,205.01, 204,340.05 and 42,710.76

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Solution

The fourth proportional to 136,205.01, 204,340.05 and 42,710.76 is: 64,076.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,205.01 : 204,340.05 = 42,710.76 : x
  2. Step 2: Convert to fraction form
    136,205.01/204,340.05 = 42,710.76/x
  3. Step 3: Cross multiply
    136,205.01x = 204,340.05 × 42,710.76
  4. Step 4: Simplify right side
    136,205.01x = 8,727,518,833.94
  5. Step 5: Solve for x
    x = 8,727,518,833.94/136,205.01
  6. Step 6: Final answer
    x = 64,076.34

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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.