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Finding the Fourth Proportional to 74,730.60, 112,095.90 and 49,847.40

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Solution

The fourth proportional to 74,730.60, 112,095.90 and 49,847.40 is: 74,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,730.60 : 112,095.90 = 49,847.40 : x
  2. Step 2: Convert to fraction form
    74,730.60/112,095.90 = 49,847.40/x
  3. Step 3: Cross multiply
    74,730.60x = 112,095.90 × 49,847.40
  4. Step 4: Simplify right side
    74,730.60x = 5,587,689,165.66
  5. Step 5: Solve for x
    x = 5,587,689,165.66/74,730.60
  6. Step 6: Final answer
    x = 74,771.10

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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.