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Finding the Fourth Proportional to 125,251.74, 172,873.50 and 115,164.24

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Solution

The fourth proportional to 125,251.74, 172,873.50 and 115,164.24 is: 158,950.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,251.74 : 172,873.50 = 115,164.24 : x
  2. Step 2: Convert to fraction form
    125,251.74/172,873.50 = 115,164.24/x
  3. Step 3: Cross multiply
    125,251.74x = 172,873.50 × 115,164.24
  4. Step 4: Simplify right side
    125,251.74x = 19,908,845,243.64
  5. Step 5: Solve for x
    x = 19,908,845,243.64/125,251.74
  6. Step 6: Final answer
    x = 158,950.65

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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.