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Finding the Fourth Proportional to 158,592.75, 218,837.88 and 86,953.92

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Solution

The fourth proportional to 158,592.75, 218,837.88 and 86,953.92 is: 119,985.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,592.75 : 218,837.88 = 86,953.92 : x
  2. Step 2: Convert to fraction form
    158,592.75/218,837.88 = 86,953.92/x
  3. Step 3: Cross multiply
    158,592.75x = 218,837.88 × 86,953.92
  4. Step 4: Simplify right side
    158,592.75x = 19,028,811,510.49
  5. Step 5: Solve for x
    x = 19,028,811,510.49/158,592.75
  6. Step 6: Final answer
    x = 119,985.38

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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.