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Finding the Fourth Proportional to 186,010.40, 279,011.94 and 61,351.40

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Solution

The fourth proportional to 186,010.40, 279,011.94 and 61,351.40 is: 92,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,010.40 : 279,011.94 = 61,351.40 : x
  2. Step 2: Convert to fraction form
    186,010.40/279,011.94 = 61,351.40/x
  3. Step 3: Cross multiply
    186,010.40x = 279,011.94 × 61,351.40
  4. Step 4: Simplify right side
    186,010.40x = 17,117,773,135.72
  5. Step 5: Solve for x
    x = 17,117,773,135.72/186,010.40
  6. Step 6: Final answer
    x = 92,025.89

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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.