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Finding the Fourth Proportional to 229,373.70, 316,525.08 and 127,405.62

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Solution

The fourth proportional to 229,373.70, 316,525.08 and 127,405.62 is: 175,813.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,373.70 : 316,525.08 = 127,405.62 : x
  2. Step 2: Convert to fraction form
    229,373.70/316,525.08 = 127,405.62/x
  3. Step 3: Cross multiply
    229,373.70x = 316,525.08 × 127,405.62
  4. Step 4: Simplify right side
    229,373.70x = 40,327,074,062.95
  5. Step 5: Solve for x
    x = 40,327,074,062.95/229,373.70
  6. Step 6: Final answer
    x = 175,813.85

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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.