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Finding the Fourth Proportional to 114,989.71, 172,486.10 and 36,103.95

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Solution

The fourth proportional to 114,989.71, 172,486.10 and 36,103.95 is: 54,156.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,989.71 : 172,486.10 = 36,103.95 : x
  2. Step 2: Convert to fraction form
    114,989.71/172,486.10 = 36,103.95/x
  3. Step 3: Cross multiply
    114,989.71x = 172,486.10 × 36,103.95
  4. Step 4: Simplify right side
    114,989.71x = 6,227,429,530.10
  5. Step 5: Solve for x
    x = 6,227,429,530.10/114,989.71
  6. Step 6: Final answer
    x = 54,156.41

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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.