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Finding the Fourth Proportional to 77,219.93, 106,766.83 and 67,632.32

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Solution

The fourth proportional to 77,219.93, 106,766.83 and 67,632.32 is: 93,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,219.93 : 106,766.83 = 67,632.32 : x
  2. Step 2: Convert to fraction form
    77,219.93/106,766.83 = 67,632.32/x
  3. Step 3: Cross multiply
    77,219.93x = 106,766.83 × 67,632.32
  4. Step 4: Simplify right side
    77,219.93x = 7,220,888,411.95
  5. Step 5: Solve for x
    x = 7,220,888,411.95/77,219.93
  6. Step 6: Final answer
    x = 93,510.69

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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.