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Finding the Fourth Proportional to 256,753.26, 354,368.52 and 172,018.08

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Solution

The fourth proportional to 256,753.26, 354,368.52 and 172,018.08 is: 237,417.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,753.26 : 354,368.52 = 172,018.08 : x
  2. Step 2: Convert to fraction form
    256,753.26/354,368.52 = 172,018.08/x
  3. Step 3: Cross multiply
    256,753.26x = 354,368.52 × 172,018.08
  4. Step 4: Simplify right side
    256,753.26x = 60,957,792,422.84
  5. Step 5: Solve for x
    x = 60,957,792,422.84/256,753.26
  6. Step 6: Final answer
    x = 237,417.79

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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.