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Finding the Fourth Proportional to 173,445.20, 260,167.80 and 134,079.20

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Solution

The fourth proportional to 173,445.20, 260,167.80 and 134,079.20 is: 201,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,445.20 : 260,167.80 = 134,079.20 : x
  2. Step 2: Convert to fraction form
    173,445.20/260,167.80 = 134,079.20/x
  3. Step 3: Cross multiply
    173,445.20x = 260,167.80 × 134,079.20
  4. Step 4: Simplify right side
    173,445.20x = 34,883,090,489.76
  5. Step 5: Solve for x
    x = 34,883,090,489.76/173,445.20
  6. Step 6: Final answer
    x = 201,118.80

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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.