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Finding the Fourth Proportional to 229,170.35, 316,255.25 and 127,195.91

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Solution

The fourth proportional to 229,170.35, 316,255.25 and 127,195.91 is: 175,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,170.35 : 316,255.25 = 127,195.91 : x
  2. Step 2: Convert to fraction form
    229,170.35/316,255.25 = 127,195.91/x
  3. Step 3: Cross multiply
    229,170.35x = 316,255.25 × 127,195.91
  4. Step 4: Simplify right side
    229,170.35x = 40,226,374,316.03
  5. Step 5: Solve for x
    x = 40,226,374,316.03/229,170.35
  6. Step 6: Final answer
    x = 175,530.45

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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.