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Finding the Fourth Proportional to 158,167.56, 218,271.23 and 86,547.59

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Solution

The fourth proportional to 158,167.56, 218,271.23 and 86,547.59 is: 119,435.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,167.56 : 218,271.23 = 86,547.59 : x
  2. Step 2: Convert to fraction form
    158,167.56/218,271.23 = 86,547.59/x
  3. Step 3: Cross multiply
    158,167.56x = 218,271.23 × 86,547.59
  4. Step 4: Simplify right side
    158,167.56x = 18,890,847,398.74
  5. Step 5: Solve for x
    x = 18,890,847,398.74/158,167.56
  6. Step 6: Final answer
    x = 119,435.66

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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.