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Finding the Fourth Proportional to 86,902.88, 119,933.14 and 48,671.23

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Solution

The fourth proportional to 86,902.88, 119,933.14 and 48,671.23 is: 67,170.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,902.88 : 119,933.14 = 48,671.23 : x
  2. Step 2: Convert to fraction form
    86,902.88/119,933.14 = 48,671.23/x
  3. Step 3: Cross multiply
    86,902.88x = 119,933.14 × 48,671.23
  4. Step 4: Simplify right side
    86,902.88x = 5,837,293,541.52
  5. Step 5: Solve for x
    x = 5,837,293,541.52/86,902.88
  6. Step 6: Final answer
    x = 67,170.32

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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.