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Finding the Fourth Proportional to 121,041.65, 181,572.16 and 36,809.35

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Solution

The fourth proportional to 121,041.65, 181,572.16 and 36,809.35 is: 55,216.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,041.65 : 181,572.16 = 36,809.35 : x
  2. Step 2: Convert to fraction form
    121,041.65/181,572.16 = 36,809.35/x
  3. Step 3: Cross multiply
    121,041.65x = 181,572.16 × 36,809.35
  4. Step 4: Simplify right side
    121,041.65x = 6,683,553,187.70
  5. Step 5: Solve for x
    x = 6,683,553,187.70/121,041.65
  6. Step 6: Final answer
    x = 55,216.97

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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.