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Finding the Fourth Proportional to 125,298.32, 172,944.06 and 77,523.44

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Solution

The fourth proportional to 125,298.32, 172,944.06 and 77,523.44 is: 107,002.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,298.32 : 172,944.06 = 77,523.44 : x
  2. Step 2: Convert to fraction form
    125,298.32/172,944.06 = 77,523.44/x
  3. Step 3: Cross multiply
    125,298.32x = 172,944.06 × 77,523.44
  4. Step 4: Simplify right side
    125,298.32x = 13,407,218,458.77
  5. Step 5: Solve for x
    x = 13,407,218,458.77/125,298.32
  6. Step 6: Final answer
    x = 107,002.38

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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.