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Finding the Fourth Proportional to 186,647.28, 279,929.46 and 53,526.96

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Solution

The fourth proportional to 186,647.28, 279,929.46 and 53,526.96 is: 80,278.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,647.28 : 279,929.46 = 53,526.96 : x
  2. Step 2: Convert to fraction form
    186,647.28/279,929.46 = 53,526.96/x
  3. Step 3: Cross multiply
    186,647.28x = 279,929.46 × 53,526.96
  4. Step 4: Simplify right side
    186,647.28x = 14,983,773,008.24
  5. Step 5: Solve for x
    x = 14,983,773,008.24/186,647.28
  6. Step 6: Final answer
    x = 80,278.55

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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.