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Finding the Fourth Proportional to 115,953.61, 173,963.63 and 56,806.60

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Solution

The fourth proportional to 115,953.61, 173,963.63 and 56,806.60 is: 85,226.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,953.61 : 173,963.63 = 56,806.60 : x
  2. Step 2: Convert to fraction form
    115,953.61/173,963.63 = 56,806.60/x
  3. Step 3: Cross multiply
    115,953.61x = 173,963.63 × 56,806.60
  4. Step 4: Simplify right side
    115,953.61x = 9,882,282,059.93
  5. Step 5: Solve for x
    x = 9,882,282,059.93/115,953.61
  6. Step 6: Final answer
    x = 85,226.17

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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.