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Finding the Fourth Proportional to 186,381.83, 279,543.58 and 61,722.83

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Solution

The fourth proportional to 186,381.83, 279,543.58 and 61,722.83 is: 92,574.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,381.83 : 279,543.58 = 61,722.83 : x
  2. Step 2: Convert to fraction form
    186,381.83/279,543.58 = 61,722.83/x
  3. Step 3: Cross multiply
    186,381.83x = 279,543.58 × 61,722.83
  4. Step 4: Simplify right side
    186,381.83x = 17,254,220,865.93
  5. Step 5: Solve for x
    x = 17,254,220,865.93/186,381.83
  6. Step 6: Final answer
    x = 92,574.59

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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.