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Finding the Fourth Proportional to 158,491.35, 218,740.46 and 98,081.44

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Solution

The fourth proportional to 158,491.35, 218,740.46 and 98,081.44 is: 135,366.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,491.35 : 218,740.46 = 98,081.44 : x
  2. Step 2: Convert to fraction form
    158,491.35/218,740.46 = 98,081.44/x
  3. Step 3: Cross multiply
    158,491.35x = 218,740.46 × 98,081.44
  4. Step 4: Simplify right side
    158,491.35x = 21,454,379,303.06
  5. Step 5: Solve for x
    x = 21,454,379,303.06/158,491.35
  6. Step 6: Final answer
    x = 135,366.25

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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.