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Finding the Fourth Proportional to 255,118.94, 382,545.80 and 75,180.76

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Solution

The fourth proportional to 255,118.94, 382,545.80 and 75,180.76 is: 112,732.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,118.94 : 382,545.80 = 75,180.76 : x
  2. Step 2: Convert to fraction form
    255,118.94/382,545.80 = 75,180.76/x
  3. Step 3: Cross multiply
    255,118.94x = 382,545.80 × 75,180.76
  4. Step 4: Simplify right side
    255,118.94x = 28,760,083,978.81
  5. Step 5: Solve for x
    x = 28,760,083,978.81/255,118.94
  6. Step 6: Final answer
    x = 112,732.06

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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.