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Finding the Fourth Proportional to 74,737.71, 112,106.57 and 51,293.07

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Solution

The fourth proportional to 74,737.71, 112,106.57 and 51,293.07 is: 76,939.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,737.71 : 112,106.57 = 51,293.07 : x
  2. Step 2: Convert to fraction form
    74,737.71/112,106.57 = 51,293.07/x
  3. Step 3: Cross multiply
    74,737.71x = 112,106.57 × 51,293.07
  4. Step 4: Simplify right side
    74,737.71x = 5,750,289,886.00
  5. Step 5: Solve for x
    x = 5,750,289,886.00/74,737.71
  6. Step 6: Final answer
    x = 76,939.61

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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.