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Finding the Fourth Proportional to 173,656.90, 260,505.60 and 55,340.20

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Solution

The fourth proportional to 173,656.90, 260,505.60 and 55,340.20 is: 83,016.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,656.90 : 260,505.60 = 55,340.20 : x
  2. Step 2: Convert to fraction form
    173,656.90/260,505.60 = 55,340.20/x
  3. Step 3: Cross multiply
    173,656.90x = 260,505.60 × 55,340.20
  4. Step 4: Simplify right side
    173,656.90x = 14,416,432,005.12
  5. Step 5: Solve for x
    x = 14,416,432,005.12/173,656.90
  6. Step 6: Final answer
    x = 83,016.75

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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.