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Finding the Fourth Proportional to 158,604.65, 218,854.18 and 90,626.03

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Solution

The fourth proportional to 158,604.65, 218,854.18 and 90,626.03 is: 125,052.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,604.65 : 218,854.18 = 90,626.03 : x
  2. Step 2: Convert to fraction form
    158,604.65/218,854.18 = 90,626.03/x
  3. Step 3: Cross multiply
    158,604.65x = 218,854.18 × 90,626.03
  4. Step 4: Simplify right side
    158,604.65x = 19,833,885,482.31
  5. Step 5: Solve for x
    x = 19,833,885,482.31/158,604.65
  6. Step 6: Final answer
    x = 125,052.36

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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.