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Finding the Fourth Proportional to 229,172.87, 316,256.28 and 127,195.71

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Solution

The fourth proportional to 229,172.87, 316,256.28 and 127,195.71 is: 175,528.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,172.87 : 316,256.28 = 127,195.71 : x
  2. Step 2: Convert to fraction form
    229,172.87/316,256.28 = 127,195.71/x
  3. Step 3: Cross multiply
    229,172.87x = 316,256.28 × 127,195.71
  4. Step 4: Simplify right side
    229,172.87x = 40,226,443,501.01
  5. Step 5: Solve for x
    x = 40,226,443,501.01/229,172.87
  6. Step 6: Final answer
    x = 175,528.82

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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.