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Finding the Fourth Proportional to 173,414.80, 260,143.05 and 61,071.81

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Solution

The fourth proportional to 173,414.80, 260,143.05 and 61,071.81 is: 91,615.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,414.80 : 260,143.05 = 61,071.81 : x
  2. Step 2: Convert to fraction form
    173,414.80/260,143.05 = 61,071.81/x
  3. Step 3: Cross multiply
    173,414.80x = 260,143.05 × 61,071.81
  4. Step 4: Simplify right side
    173,414.80x = 15,887,406,922.42
  5. Step 5: Solve for x
    x = 15,887,406,922.42/173,414.80
  6. Step 6: Final answer
    x = 91,615.06

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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.