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Finding the Fourth Proportional to 225,436.32, 311,098.32 and 124,832.16

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Solution

The fourth proportional to 225,436.32, 311,098.32 and 124,832.16 is: 172,266.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,436.32 : 311,098.32 = 124,832.16 : x
  2. Step 2: Convert to fraction form
    225,436.32/311,098.32 = 124,832.16/x
  3. Step 3: Cross multiply
    225,436.32x = 311,098.32 × 124,832.16
  4. Step 4: Simplify right side
    225,436.32x = 38,835,075,257.97
  5. Step 5: Solve for x
    x = 38,835,075,257.97/225,436.32
  6. Step 6: Final answer
    x = 172,266.28

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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.