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Finding the Fourth Proportional to 220,673.72, 304,520.76 and 125,178.36

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Solution

The fourth proportional to 220,673.72, 304,520.76 and 125,178.36 is: 172,741.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,673.72 : 304,520.76 = 125,178.36 : x
  2. Step 2: Convert to fraction form
    220,673.72/304,520.76 = 125,178.36/x
  3. Step 3: Cross multiply
    220,673.72x = 304,520.76 × 125,178.36
  4. Step 4: Simplify right side
    220,673.72x = 38,119,409,322.75
  5. Step 5: Solve for x
    x = 38,119,409,322.75/220,673.72
  6. Step 6: Final answer
    x = 172,741.05

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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.