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Finding the Fourth Proportional to 121,206.70, 181,810.05 and 62,022.70

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Solution

The fourth proportional to 121,206.70, 181,810.05 and 62,022.70 is: 93,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,206.70 : 181,810.05 = 62,022.70 : x
  2. Step 2: Convert to fraction form
    121,206.70/181,810.05 = 62,022.70/x
  3. Step 3: Cross multiply
    121,206.70x = 181,810.05 × 62,022.70
  4. Step 4: Simplify right side
    121,206.70x = 11,276,350,188.14
  5. Step 5: Solve for x
    x = 11,276,350,188.14/121,206.70
  6. Step 6: Final answer
    x = 93,034.05

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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.