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Finding the Fourth Proportional to 121,136.87, 181,742.54 and 62,014.06

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Solution

The fourth proportional to 121,136.87, 181,742.54 and 62,014.06 is: 93,040.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,136.87 : 181,742.54 = 62,014.06 : x
  2. Step 2: Convert to fraction form
    121,136.87/181,742.54 = 62,014.06/x
  3. Step 3: Cross multiply
    121,136.87x = 181,742.54 × 62,014.06
  4. Step 4: Simplify right side
    121,136.87x = 11,270,591,674.92
  5. Step 5: Solve for x
    x = 11,270,591,674.92/121,136.87
  6. Step 6: Final answer
    x = 93,040.15

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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.