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Finding the Fourth Proportional to 153,879.98, 231,225.89 and 82,855.13

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Solution

The fourth proportional to 153,879.98, 231,225.89 and 82,855.13 is: 124,501.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,879.98 : 231,225.89 = 82,855.13 : x
  2. Step 2: Convert to fraction form
    153,879.98/231,225.89 = 82,855.13/x
  3. Step 3: Cross multiply
    153,879.98x = 231,225.89 × 82,855.13
  4. Step 4: Simplify right side
    153,879.98x = 19,158,251,175.32
  5. Step 5: Solve for x
    x = 19,158,251,175.32/153,879.98
  6. Step 6: Final answer
    x = 124,501.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.