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Finding the Fourth Proportional to 186,488.73, 279,681.84 and 51,520.50

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Solution

The fourth proportional to 186,488.73, 279,681.84 and 51,520.50 is: 77,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,488.73 : 279,681.84 = 51,520.50 : x
  2. Step 2: Convert to fraction form
    186,488.73/279,681.84 = 51,520.50/x
  3. Step 3: Cross multiply
    186,488.73x = 279,681.84 × 51,520.50
  4. Step 4: Simplify right side
    186,488.73x = 14,409,348,237.72
  5. Step 5: Solve for x
    x = 14,409,348,237.72/186,488.73
  6. Step 6: Final answer
    x = 77,266.59

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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.