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Finding the Fourth Proportional to 256,618.13, 354,125.66 and 141,894.77

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Solution

The fourth proportional to 256,618.13, 354,125.66 and 141,894.77 is: 195,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,618.13 : 354,125.66 = 141,894.77 : x
  2. Step 2: Convert to fraction form
    256,618.13/354,125.66 = 141,894.77/x
  3. Step 3: Cross multiply
    256,618.13x = 354,125.66 × 141,894.77
  4. Step 4: Simplify right side
    256,618.13x = 50,248,576,596.70
  5. Step 5: Solve for x
    x = 50,248,576,596.70/256,618.13
  6. Step 6: Final answer
    x = 195,810.71

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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.