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Finding the Fourth Proportional to 186,558.40, 279,920.08 and 97,790.64

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Solution

The fourth proportional to 186,558.40, 279,920.08 and 97,790.64 is: 146,729.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,558.40 : 279,920.08 = 97,790.64 : x
  2. Step 2: Convert to fraction form
    186,558.40/279,920.08 = 97,790.64/x
  3. Step 3: Cross multiply
    186,558.40x = 279,920.08 × 97,790.64
  4. Step 4: Simplify right side
    186,558.40x = 27,373,563,772.05
  5. Step 5: Solve for x
    x = 27,373,563,772.05/186,558.40
  6. Step 6: Final answer
    x = 146,729.19

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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.