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Finding the Fourth Proportional to 173,776.64, 260,660.40 and 55,455.20

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Solution

The fourth proportional to 173,776.64, 260,660.40 and 55,455.20 is: 83,181.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,776.64 : 260,660.40 = 55,455.20 : x
  2. Step 2: Convert to fraction form
    173,776.64/260,660.40 = 55,455.20/x
  3. Step 3: Cross multiply
    173,776.64x = 260,660.40 × 55,455.20
  4. Step 4: Simplify right side
    173,776.64x = 14,454,974,614.08
  5. Step 5: Solve for x
    x = 14,454,974,614.08/173,776.64
  6. Step 6: Final answer
    x = 83,181.34

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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.