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Finding the Fourth Proportional to 110,671.05, 152,710.65 and 62,919.12

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Solution

The fourth proportional to 110,671.05, 152,710.65 and 62,919.12 is: 86,819.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,671.05 : 152,710.65 = 62,919.12 : x
  2. Step 2: Convert to fraction form
    110,671.05/152,710.65 = 62,919.12/x
  3. Step 3: Cross multiply
    110,671.05x = 152,710.65 × 62,919.12
  4. Step 4: Simplify right side
    110,671.05x = 9,608,419,712.63
  5. Step 5: Solve for x
    x = 9,608,419,712.63/110,671.05
  6. Step 6: Final answer
    x = 86,819.63

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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.