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Finding the Fourth Proportional to 105,888.81, 158,786.58 and 49,744.87

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Solution

The fourth proportional to 105,888.81, 158,786.58 and 49,744.87 is: 74,595.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,888.81 : 158,786.58 = 49,744.87 : x
  2. Step 2: Convert to fraction form
    105,888.81/158,786.58 = 49,744.87/x
  3. Step 3: Cross multiply
    105,888.81x = 158,786.58 × 49,744.87
  4. Step 4: Simplify right side
    105,888.81x = 7,898,818,462.60
  5. Step 5: Solve for x
    x = 7,898,818,462.60/105,888.81
  6. Step 6: Final answer
    x = 74,595.40

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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.