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Finding the Fourth Proportional to 158,710.97, 219,020.54 and 87,092.19

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Solution

The fourth proportional to 158,710.97, 219,020.54 and 87,092.19 is: 120,186.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,710.97 : 219,020.54 = 87,092.19 : x
  2. Step 2: Convert to fraction form
    158,710.97/219,020.54 = 87,092.19/x
  3. Step 3: Cross multiply
    158,710.97x = 219,020.54 × 87,092.19
  4. Step 4: Simplify right side
    158,710.97x = 19,074,978,048.12
  5. Step 5: Solve for x
    x = 19,074,978,048.12/158,710.97
  6. Step 6: Final answer
    x = 120,186.89

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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.