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Finding the Fourth Proportional to 225,116.72, 310,657.24 and 124,514.64

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Solution

The fourth proportional to 225,116.72, 310,657.24 and 124,514.64 is: 171,828.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,116.72 : 310,657.24 = 124,514.64 : x
  2. Step 2: Convert to fraction form
    225,116.72/310,657.24 = 124,514.64/x
  3. Step 3: Cross multiply
    225,116.72x = 310,657.24 × 124,514.64
  4. Step 4: Simplify right side
    225,116.72x = 38,681,374,401.99
  5. Step 5: Solve for x
    x = 38,681,374,401.99/225,116.72
  6. Step 6: Final answer
    x = 171,828.08

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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.