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Finding the Fourth Proportional to 104,897.31, 144,758.31 and 57,150.66

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Solution

The fourth proportional to 104,897.31, 144,758.31 and 57,150.66 is: 78,867.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,897.31 : 144,758.31 = 57,150.66 : x
  2. Step 2: Convert to fraction form
    104,897.31/144,758.31 = 57,150.66/x
  3. Step 3: Cross multiply
    104,897.31x = 144,758.31 × 57,150.66
  4. Step 4: Simplify right side
    104,897.31x = 8,273,032,956.98
  5. Step 5: Solve for x
    x = 8,273,032,956.98/104,897.31
  6. Step 6: Final answer
    x = 78,867.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.