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Finding the Fourth Proportional to 74,951.52, 103,480.92 and 46,698.72

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Solution

The fourth proportional to 74,951.52, 103,480.92 and 46,698.72 is: 64,474.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,951.52 : 103,480.92 = 46,698.72 : x
  2. Step 2: Convert to fraction form
    74,951.52/103,480.92 = 46,698.72/x
  3. Step 3: Cross multiply
    74,951.52x = 103,480.92 × 46,698.72
  4. Step 4: Simplify right side
    74,951.52x = 4,832,426,508.42
  5. Step 5: Solve for x
    x = 4,832,426,508.42/74,951.52
  6. Step 6: Final answer
    x = 64,474.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.