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Finding the Fourth Proportional to 225,570.48, 311,274.96 and 123,577.20

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Solution

The fourth proportional to 225,570.48, 311,274.96 and 123,577.20 is: 170,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,570.48 : 311,274.96 = 123,577.20 : x
  2. Step 2: Convert to fraction form
    225,570.48/311,274.96 = 123,577.20/x
  3. Step 3: Cross multiply
    225,570.48x = 311,274.96 × 123,577.20
  4. Step 4: Simplify right side
    225,570.48x = 38,466,487,986.91
  5. Step 5: Solve for x
    x = 38,466,487,986.91/225,570.48
  6. Step 6: Final answer
    x = 170,529.80

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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.