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Finding the Fourth Proportional to 114,603.60, 171,885.52 and 31,478.16

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Solution

The fourth proportional to 114,603.60, 171,885.52 and 31,478.16 is: 47,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,603.60 : 171,885.52 = 31,478.16 : x
  2. Step 2: Convert to fraction form
    114,603.60/171,885.52 = 31,478.16/x
  3. Step 3: Cross multiply
    114,603.60x = 171,885.52 × 31,478.16
  4. Step 4: Simplify right side
    114,603.60x = 5,410,639,900.24
  5. Step 5: Solve for x
    x = 5,410,639,900.24/114,603.60
  6. Step 6: Final answer
    x = 47,211.78

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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.