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Finding the Fourth Proportional to 158,586.27, 218,852.06 and 86,962.02

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Solution

The fourth proportional to 158,586.27, 218,852.06 and 86,962.02 is: 120,009.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,586.27 : 218,852.06 = 86,962.02 : x
  2. Step 2: Convert to fraction form
    158,586.27/218,852.06 = 86,962.02/x
  3. Step 3: Cross multiply
    158,586.27x = 218,852.06 × 86,962.02
  4. Step 4: Simplify right side
    158,586.27x = 19,031,817,218.76
  5. Step 5: Solve for x
    x = 19,031,817,218.76/158,586.27
  6. Step 6: Final answer
    x = 120,009.24

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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.