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Finding the Fourth Proportional to 75,756.69, 112,740.59 and 73,233.90

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Solution

The fourth proportional to 75,756.69, 112,740.59 and 73,233.90 is: 108,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,756.69 : 112,740.59 = 73,233.90 : x
  2. Step 2: Convert to fraction form
    75,756.69/112,740.59 = 73,233.90/x
  3. Step 3: Cross multiply
    75,756.69x = 112,740.59 × 73,233.90
  4. Step 4: Simplify right side
    75,756.69x = 8,256,432,629.06
  5. Step 5: Solve for x
    x = 8,256,432,629.06/75,756.69
  6. Step 6: Final answer
    x = 108,986.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.