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Finding the Fourth Proportional to 158,470.44, 218,690.92 and 86,848.92

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Solution

The fourth proportional to 158,470.44, 218,690.92 and 86,848.92 is: 119,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,470.44 : 218,690.92 = 86,848.92 : x
  2. Step 2: Convert to fraction form
    158,470.44/218,690.92 = 86,848.92/x
  3. Step 3: Cross multiply
    158,470.44x = 218,690.92 × 86,848.92
  4. Step 4: Simplify right side
    158,470.44x = 18,993,070,215.81
  5. Step 5: Solve for x
    x = 18,993,070,215.81/158,470.44
  6. Step 6: Final answer
    x = 119,852.45

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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.