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Finding the Fourth Proportional to 192,360.01, 288,573.05 and 85,781.83

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Solution

The fourth proportional to 192,360.01, 288,573.05 and 85,781.83 is: 128,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,360.01 : 288,573.05 = 85,781.83 : x
  2. Step 2: Convert to fraction form
    192,360.01/288,573.05 = 85,781.83/x
  3. Step 3: Cross multiply
    192,360.01x = 288,573.05 × 85,781.83
  4. Step 4: Simplify right side
    192,360.01x = 24,754,323,888.77
  5. Step 5: Solve for x
    x = 24,754,323,888.77/192,360.01
  6. Step 6: Final answer
    x = 128,687.47

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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.