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Finding the Fourth Proportional to 552,066.98, 828,139.85 and 147,256.92

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Solution

The fourth proportional to 552,066.98, 828,139.85 and 147,256.92 is: 220,895.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,066.98 : 828,139.85 = 147,256.92 : x
  2. Step 2: Convert to fraction form
    552,066.98/828,139.85 = 147,256.92/x
  3. Step 3: Cross multiply
    552,066.98x = 828,139.85 × 147,256.92
  4. Step 4: Simplify right side
    552,066.98x = 121,949,322,903.98
  5. Step 5: Solve for x
    x = 121,949,322,903.98/552,066.98
  6. Step 6: Final answer
    x = 220,895.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.