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Finding the Fourth Proportional to 218,967.44, 302,182.53 and 127,079.66

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Solution

The fourth proportional to 218,967.44, 302,182.53 and 127,079.66 is: 175,374.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,967.44 : 302,182.53 = 127,079.66 : x
  2. Step 2: Convert to fraction form
    218,967.44/302,182.53 = 127,079.66/x
  3. Step 3: Cross multiply
    218,967.44x = 302,182.53 × 127,079.66
  4. Step 4: Simplify right side
    218,967.44x = 38,401,253,170.34
  5. Step 5: Solve for x
    x = 38,401,253,170.34/218,967.44
  6. Step 6: Final answer
    x = 175,374.26

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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.