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Finding the Fourth Proportional to 117,616.70, 176,369.47 and 45,603.32

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Solution

The fourth proportional to 117,616.70, 176,369.47 and 45,603.32 is: 68,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,616.70 : 176,369.47 = 45,603.32 : x
  2. Step 2: Convert to fraction form
    117,616.70/176,369.47 = 45,603.32/x
  3. Step 3: Cross multiply
    117,616.70x = 176,369.47 × 45,603.32
  4. Step 4: Simplify right side
    117,616.70x = 8,043,032,382.78
  5. Step 5: Solve for x
    x = 8,043,032,382.78/117,616.70
  6. Step 6: Final answer
    x = 68,383.42

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1.5x scale

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.