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Finding the Fourth Proportional to 229,231.55, 343,851.57 and 79,476.72

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Solution

The fourth proportional to 229,231.55, 343,851.57 and 79,476.72 is: 119,216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,231.55 : 343,851.57 = 79,476.72 : x
  2. Step 2: Convert to fraction form
    229,231.55/343,851.57 = 79,476.72/x
  3. Step 3: Cross multiply
    229,231.55x = 343,851.57 × 79,476.72
  4. Step 4: Simplify right side
    229,231.55x = 27,328,194,950.45
  5. Step 5: Solve for x
    x = 27,328,194,950.45/229,231.55
  6. Step 6: Final answer
    x = 119,216.55

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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.