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Finding the Fourth Proportional to 229,588.62, 316,830.20 and 127,611.48

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Solution

The fourth proportional to 229,588.62, 316,830.20 and 127,611.48 is: 176,102.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,588.62 : 316,830.20 = 127,611.48 : x
  2. Step 2: Convert to fraction form
    229,588.62/316,830.20 = 127,611.48/x
  3. Step 3: Cross multiply
    229,588.62x = 316,830.20 × 127,611.48
  4. Step 4: Simplify right side
    229,588.62x = 40,431,170,730.70
  5. Step 5: Solve for x
    x = 40,431,170,730.70/229,588.62
  6. Step 6: Final answer
    x = 176,102.68

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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.