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Finding the Fourth Proportional to 256,545.61, 384,875.21 and 88,062.16

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Solution

The fourth proportional to 256,545.61, 384,875.21 and 88,062.16 is: 132,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,545.61 : 384,875.21 = 88,062.16 : x
  2. Step 2: Convert to fraction form
    256,545.61/384,875.21 = 88,062.16/x
  3. Step 3: Cross multiply
    256,545.61x = 384,875.21 × 88,062.16
  4. Step 4: Simplify right side
    256,545.61x = 33,892,942,323.05
  5. Step 5: Solve for x
    x = 33,892,942,323.05/256,545.61
  6. Step 6: Final answer
    x = 132,112.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.