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Finding the Fourth Proportional to 229,343.65, 316,504.73 and 127,369.57

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Solution

The fourth proportional to 229,343.65, 316,504.73 and 127,369.57 is: 175,775.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,343.65 : 316,504.73 = 127,369.57 : x
  2. Step 2: Convert to fraction form
    229,343.65/316,504.73 = 127,369.57/x
  3. Step 3: Cross multiply
    229,343.65x = 316,504.73 × 127,369.57
  4. Step 4: Simplify right side
    229,343.65x = 40,313,070,726.22
  5. Step 5: Solve for x
    x = 40,313,070,726.22/229,343.65
  6. Step 6: Final answer
    x = 175,775.83

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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.