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Finding the Fourth Proportional to 229,703.95, 316,993.50 and 126,340.19

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Solution

The fourth proportional to 229,703.95, 316,993.50 and 126,340.19 is: 174,350.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,703.95 : 316,993.50 = 126,340.19 : x
  2. Step 2: Convert to fraction form
    229,703.95/316,993.50 = 126,340.19/x
  3. Step 3: Cross multiply
    229,703.95x = 316,993.50 × 126,340.19
  4. Step 4: Simplify right side
    229,703.95x = 40,049,018,622.52
  5. Step 5: Solve for x
    x = 40,049,018,622.52/229,703.95
  6. Step 6: Final answer
    x = 174,350.59

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Double scale
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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.