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Finding the Fourth Proportional to 229,216.91, 316,328.49 and 125,855.24

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Solution

The fourth proportional to 229,216.91, 316,328.49 and 125,855.24 is: 173,685.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,216.91 : 316,328.49 = 125,855.24 : x
  2. Step 2: Convert to fraction form
    229,216.91/316,328.49 = 125,855.24/x
  3. Step 3: Cross multiply
    229,216.91x = 316,328.49 × 125,855.24
  4. Step 4: Simplify right side
    229,216.91x = 39,811,596,446.15
  5. Step 5: Solve for x
    x = 39,811,596,446.15/229,216.91
  6. Step 6: Final answer
    x = 173,685.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.