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Finding the Fourth Proportional to 194,416.65, 291,597.29 and 61,279.61

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Solution

The fourth proportional to 194,416.65, 291,597.29 and 61,279.61 is: 91,910.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,416.65 : 291,597.29 = 61,279.61 : x
  2. Step 2: Convert to fraction form
    194,416.65/291,597.29 = 61,279.61/x
  3. Step 3: Cross multiply
    194,416.65x = 291,597.29 × 61,279.61
  4. Step 4: Simplify right side
    194,416.65x = 17,868,966,673.67
  5. Step 5: Solve for x
    x = 17,868,966,673.67/194,416.65
  6. Step 6: Final answer
    x = 91,910.68

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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.