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Finding the Fourth Proportional to 186,554.40, 279,749.04 and 53,404.32

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Solution

The fourth proportional to 186,554.40, 279,749.04 and 53,404.32 is: 80,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,554.40 : 279,749.04 = 53,404.32 : x
  2. Step 2: Convert to fraction form
    186,554.40/279,749.04 = 53,404.32/x
  3. Step 3: Cross multiply
    186,554.40x = 279,749.04 × 53,404.32
  4. Step 4: Simplify right side
    186,554.40x = 14,939,807,251.85
  5. Step 5: Solve for x
    x = 14,939,807,251.85/186,554.40
  6. Step 6: Final answer
    x = 80,082.85

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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.