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Finding the Fourth Proportional to 115,065.98, 158,758.97 and 74,212.82

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Solution

The fourth proportional to 115,065.98, 158,758.97 and 74,212.82 is: 102,393.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,065.98 : 158,758.97 = 74,212.82 : x
  2. Step 2: Convert to fraction form
    115,065.98/158,758.97 = 74,212.82/x
  3. Step 3: Cross multiply
    115,065.98x = 158,758.97 × 74,212.82
  4. Step 4: Simplify right side
    115,065.98x = 11,781,950,864.00
  5. Step 5: Solve for x
    x = 11,781,950,864.00/115,065.98
  6. Step 6: Final answer
    x = 102,393.00

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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.