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Finding the Fourth Proportional to 226,563.01, 312,656.50 and 129,798.19

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Solution

The fourth proportional to 226,563.01, 312,656.50 and 129,798.19 is: 179,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,563.01 : 312,656.50 = 129,798.19 : x
  2. Step 2: Convert to fraction form
    226,563.01/312,656.50 = 129,798.19/x
  3. Step 3: Cross multiply
    226,563.01x = 312,656.50 × 129,798.19
  4. Step 4: Simplify right side
    226,563.01x = 40,582,248,344.80
  5. Step 5: Solve for x
    x = 40,582,248,344.80/226,563.01
  6. Step 6: Final answer
    x = 179,121.25

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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.