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Finding the Fourth Proportional to 229,378.41, 316,531.17 and 127,410.30

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Solution

The fourth proportional to 229,378.41, 316,531.17 and 127,410.30 is: 175,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,378.41 : 316,531.17 = 127,410.30 : x
  2. Step 2: Convert to fraction form
    229,378.41/316,531.17 = 127,410.30/x
  3. Step 3: Cross multiply
    229,378.41x = 316,531.17 × 127,410.30
  4. Step 4: Simplify right side
    229,378.41x = 40,329,331,329.05
  5. Step 5: Solve for x
    x = 40,329,331,329.05/229,378.41
  6. Step 6: Final answer
    x = 175,820.08

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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.