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Finding the Fourth Proportional to 229,783.91, 317,094.19 and 127,806.49

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Solution

The fourth proportional to 229,783.91, 317,094.19 and 127,806.49 is: 176,368.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,783.91 : 317,094.19 = 127,806.49 : x
  2. Step 2: Convert to fraction form
    229,783.91/317,094.19 = 127,806.49/x
  3. Step 3: Cross multiply
    229,783.91x = 317,094.19 × 127,806.49
  4. Step 4: Simplify right side
    229,783.91x = 40,526,694,311.04
  5. Step 5: Solve for x
    x = 40,526,694,311.04/229,783.91
  6. Step 6: Final answer
    x = 176,368.72

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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.