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Finding the Fourth Proportional to 117,735.40, 176,603.10 and 47,578.60

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Solution

The fourth proportional to 117,735.40, 176,603.10 and 47,578.60 is: 71,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,735.40 : 176,603.10 = 47,578.60 : x
  2. Step 2: Convert to fraction form
    117,735.40/176,603.10 = 47,578.60/x
  3. Step 3: Cross multiply
    117,735.40x = 176,603.10 × 47,578.60
  4. Step 4: Simplify right side
    117,735.40x = 8,402,528,253.66
  5. Step 5: Solve for x
    x = 8,402,528,253.66/117,735.40
  6. Step 6: Final answer
    x = 71,367.90

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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.