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Finding the Fourth Proportional to 161,686.94, 242,471.28 and 61,797.74

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Solution

The fourth proportional to 161,686.94, 242,471.28 and 61,797.74 is: 92,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,686.94 : 242,471.28 = 61,797.74 : x
  2. Step 2: Convert to fraction form
    161,686.94/242,471.28 = 61,797.74/x
  3. Step 3: Cross multiply
    161,686.94x = 242,471.28 × 61,797.74
  4. Step 4: Simplify right side
    161,686.94x = 14,984,177,118.91
  5. Step 5: Solve for x
    x = 14,984,177,118.91/161,686.94
  6. Step 6: Final answer
    x = 92,674.01

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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.