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Finding the Fourth Proportional to 229,424.76, 316,595.40 and 127,456.80

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Solution

The fourth proportional to 229,424.76, 316,595.40 and 127,456.80 is: 175,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,424.76 : 316,595.40 = 127,456.80 : x
  2. Step 2: Convert to fraction form
    229,424.76/316,595.40 = 127,456.80/x
  3. Step 3: Cross multiply
    229,424.76x = 316,595.40 × 127,456.80
  4. Step 4: Simplify right side
    229,424.76x = 40,352,236,578.72
  5. Step 5: Solve for x
    x = 40,352,236,578.72/229,424.76
  6. Step 6: Final answer
    x = 175,884.40

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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.