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Finding the Fourth Proportional to 186,530.10, 279,795.15 and 61,871.10

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Solution

The fourth proportional to 186,530.10, 279,795.15 and 61,871.10 is: 92,806.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,530.10 : 279,795.15 = 61,871.10 : x
  2. Step 2: Convert to fraction form
    186,530.10/279,795.15 = 61,871.10/x
  3. Step 3: Cross multiply
    186,530.10x = 279,795.15 × 61,871.10
  4. Step 4: Simplify right side
    186,530.10x = 17,311,233,705.17
  5. Step 5: Solve for x
    x = 17,311,233,705.17/186,530.10
  6. Step 6: Final answer
    x = 92,806.65

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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.