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Finding the Fourth Proportional to 75,085.62, 112,683.92 and 60,470.93

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Solution

The fourth proportional to 75,085.62, 112,683.92 and 60,470.93 is: 90,751.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,085.62 : 112,683.92 = 60,470.93 : x
  2. Step 2: Convert to fraction form
    75,085.62/112,683.92 = 60,470.93/x
  3. Step 3: Cross multiply
    75,085.62x = 112,683.92 × 60,470.93
  4. Step 4: Simplify right side
    75,085.62x = 6,814,100,572.67
  5. Step 5: Solve for x
    x = 6,814,100,572.67/75,085.62
  6. Step 6: Final answer
    x = 90,751.07

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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.