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Finding the Fourth Proportional to 158,797.93, 219,141.51 and 87,182.57

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Solution

The fourth proportional to 158,797.93, 219,141.51 and 87,182.57 is: 120,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,797.93 : 219,141.51 = 87,182.57 : x
  2. Step 2: Convert to fraction form
    158,797.93/219,141.51 = 87,182.57/x
  3. Step 3: Cross multiply
    158,797.93x = 219,141.51 × 87,182.57
  4. Step 4: Simplify right side
    158,797.93x = 19,105,320,035.48
  5. Step 5: Solve for x
    x = 19,105,320,035.48/158,797.93
  6. Step 6: Final answer
    x = 120,312.15

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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.