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Finding the Fourth Proportional to 357,081.18, 535,624.91 and 90,841.97

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Solution

The fourth proportional to 357,081.18, 535,624.91 and 90,841.97 is: 136,263.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,081.18 : 535,624.91 = 90,841.97 : x
  2. Step 2: Convert to fraction form
    357,081.18/535,624.91 = 90,841.97/x
  3. Step 3: Cross multiply
    357,081.18x = 535,624.91 × 90,841.97
  4. Step 4: Simplify right side
    357,081.18x = 48,657,218,873.14
  5. Step 5: Solve for x
    x = 48,657,218,873.14/357,081.18
  6. Step 6: Final answer
    x = 136,263.75

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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.