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Finding the Fourth Proportional to 194,153.85, 291,230.57 and 61,045.74

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Solution

The fourth proportional to 194,153.85, 291,230.57 and 61,045.74 is: 91,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,153.85 : 291,230.57 = 61,045.74 : x
  2. Step 2: Convert to fraction form
    194,153.85/291,230.57 = 61,045.74/x
  3. Step 3: Cross multiply
    194,153.85x = 291,230.57 × 61,045.74
  4. Step 4: Simplify right side
    194,153.85x = 17,778,385,808.89
  5. Step 5: Solve for x
    x = 17,778,385,808.89/194,153.85
  6. Step 6: Final answer
    x = 91,568.55

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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.