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Finding the Fourth Proportional to 173,730.40, 260,741.40 and 85,059.70

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Solution

The fourth proportional to 173,730.40, 260,741.40 and 85,059.70 is: 127,660.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,730.40 : 260,741.40 = 85,059.70 : x
  2. Step 2: Convert to fraction form
    173,730.40/260,741.40 = 85,059.70/x
  3. Step 3: Cross multiply
    173,730.40x = 260,741.40 × 85,059.70
  4. Step 4: Simplify right side
    173,730.40x = 22,178,585,261.58
  5. Step 5: Solve for x
    x = 22,178,585,261.58/173,730.40
  6. Step 6: Final answer
    x = 127,660.93

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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.