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Finding the Fourth Proportional to 186,188.58, 279,240.81 and 53,065.98

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Solution

The fourth proportional to 186,188.58, 279,240.81 and 53,065.98 is: 79,586.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,188.58 : 279,240.81 = 53,065.98 : x
  2. Step 2: Convert to fraction form
    186,188.58/279,240.81 = 53,065.98/x
  3. Step 3: Cross multiply
    186,188.58x = 279,240.81 × 53,065.98
  4. Step 4: Simplify right side
    186,188.58x = 14,818,187,238.64
  5. Step 5: Solve for x
    x = 14,818,187,238.64/186,188.58
  6. Step 6: Final answer
    x = 79,586.98

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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.