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Finding the Fourth Proportional to 226,385.12, 312,410.80 and 124,417.48

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Solution

The fourth proportional to 226,385.12, 312,410.80 and 124,417.48 is: 171,695.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,385.12 : 312,410.80 = 124,417.48 : x
  2. Step 2: Convert to fraction form
    226,385.12/312,410.80 = 124,417.48/x
  3. Step 3: Cross multiply
    226,385.12x = 312,410.80 × 124,417.48
  4. Step 4: Simplify right side
    226,385.12x = 38,869,364,460.78
  5. Step 5: Solve for x
    x = 38,869,364,460.78/226,385.12
  6. Step 6: Final answer
    x = 171,695.76

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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.