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Finding the Fourth Proportional to 90,846.92, 125,510.95 and 69,411.69

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Solution

The fourth proportional to 90,846.92, 125,510.95 and 69,411.69 is: 95,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,846.92 : 125,510.95 = 69,411.69 : x
  2. Step 2: Convert to fraction form
    90,846.92/125,510.95 = 69,411.69/x
  3. Step 3: Cross multiply
    90,846.92x = 125,510.95 × 69,411.69
  4. Step 4: Simplify right side
    90,846.92x = 8,711,927,153.01
  5. Step 5: Solve for x
    x = 8,711,927,153.01/90,846.92
  6. Step 6: Final answer
    x = 95,896.78

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1.5x scale

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.