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Finding the Fourth Proportional to 186,292, 279,447.28 and 53,192

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Solution

The fourth proportional to 186,292, 279,447.28 and 53,192 is: 79,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,292 : 279,447.28 = 53,192 : x
  2. Step 2: Convert to fraction form
    186,292/279,447.28 = 53,192/x
  3. Step 3: Cross multiply
    186,292x = 279,447.28 × 53,192
  4. Step 4: Simplify right side
    186,292x = 14,864,359,717.76
  5. Step 5: Solve for x
    x = 14,864,359,717.76/186,292
  6. Step 6: Final answer
    x = 79,790.65

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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.