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Finding the Fourth Proportional to 71,360.70, 98,477.78 and 39,095.46

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Solution

The fourth proportional to 71,360.70, 98,477.78 and 39,095.46 is: 53,951.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,360.70 : 98,477.78 = 39,095.46 : x
  2. Step 2: Convert to fraction form
    71,360.70/98,477.78 = 39,095.46/x
  3. Step 3: Cross multiply
    71,360.70x = 98,477.78 × 39,095.46
  4. Step 4: Simplify right side
    71,360.70x = 3,850,033,913.40
  5. Step 5: Solve for x
    x = 3,850,033,913.40/71,360.70
  6. Step 6: Final answer
    x = 53,951.74

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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.