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Finding the Fourth Proportional to 158,167.49, 218,276.37 and 86,547.62

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Solution

The fourth proportional to 158,167.49, 218,276.37 and 86,547.62 is: 119,438.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,167.49 : 218,276.37 = 86,547.62 : x
  2. Step 2: Convert to fraction form
    158,167.49/218,276.37 = 86,547.62/x
  3. Step 3: Cross multiply
    158,167.49x = 218,276.37 × 86,547.62
  4. Step 4: Simplify right side
    158,167.49x = 18,891,300,871.43
  5. Step 5: Solve for x
    x = 18,891,300,871.43/158,167.49
  6. Step 6: Final answer
    x = 119,438.59

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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.