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Finding the Fourth Proportional to 256,044.16, 353,078.76 and 169,972.75

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Solution

The fourth proportional to 256,044.16, 353,078.76 and 169,972.75 is: 234,388.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,044.16 : 353,078.76 = 169,972.75 : x
  2. Step 2: Convert to fraction form
    256,044.16/353,078.76 = 169,972.75/x
  3. Step 3: Cross multiply
    256,044.16x = 353,078.76 × 169,972.75
  4. Step 4: Simplify right side
    256,044.16x = 60,013,767,803.79
  5. Step 5: Solve for x
    x = 60,013,767,803.79/256,044.16
  6. Step 6: Final answer
    x = 234,388.35

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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.