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Finding the Fourth Proportional to 75,161.97, 103,697.79 and 42,873.39

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Solution

The fourth proportional to 75,161.97, 103,697.79 and 42,873.39 is: 59,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,161.97 : 103,697.79 = 42,873.39 : x
  2. Step 2: Convert to fraction form
    75,161.97/103,697.79 = 42,873.39/x
  3. Step 3: Cross multiply
    75,161.97x = 103,697.79 × 42,873.39
  4. Step 4: Simplify right side
    75,161.97x = 4,445,875,792.81
  5. Step 5: Solve for x
    x = 4,445,875,792.81/75,161.97
  6. Step 6: Final answer
    x = 59,150.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.