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Finding the Fourth Proportional to 229,770.17, 317,088.27 and 127,799.78

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Solution

The fourth proportional to 229,770.17, 317,088.27 and 127,799.78 is: 176,366.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,770.17 : 317,088.27 = 127,799.78 : x
  2. Step 2: Convert to fraction form
    229,770.17/317,088.27 = 127,799.78/x
  3. Step 3: Cross multiply
    229,770.17x = 317,088.27 × 127,799.78
  4. Step 4: Simplify right side
    229,770.17x = 40,523,809,561.14
  5. Step 5: Solve for x
    x = 40,523,809,561.14/229,770.17
  6. Step 6: Final answer
    x = 176,366.71

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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.