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Finding the Fourth Proportional to 163,082.16, 225,052.98 and 90,496.08

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Solution

The fourth proportional to 163,082.16, 225,052.98 and 90,496.08 is: 124,884.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,082.16 : 225,052.98 = 90,496.08 : x
  2. Step 2: Convert to fraction form
    163,082.16/225,052.98 = 90,496.08/x
  3. Step 3: Cross multiply
    163,082.16x = 225,052.98 × 90,496.08
  4. Step 4: Simplify right side
    163,082.16x = 20,366,412,482.32
  5. Step 5: Solve for x
    x = 20,366,412,482.32/163,082.16
  6. Step 6: Final answer
    x = 124,884.37

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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.