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Finding the Fourth Proportional to 228,143.56, 314,839.02 and 127,541.56

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Solution

The fourth proportional to 228,143.56, 314,839.02 and 127,541.56 is: 176,007.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,143.56 : 314,839.02 = 127,541.56 : x
  2. Step 2: Convert to fraction form
    228,143.56/314,839.02 = 127,541.56/x
  3. Step 3: Cross multiply
    228,143.56x = 314,839.02 × 127,541.56
  4. Step 4: Simplify right side
    228,143.56x = 40,155,059,759.67
  5. Step 5: Solve for x
    x = 40,155,059,759.67/228,143.56
  6. Step 6: Final answer
    x = 176,007.86

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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.