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Finding the Fourth Proportional to 121,085.66, 181,635.32 and 36,848.57

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Solution

The fourth proportional to 121,085.66, 181,635.32 and 36,848.57 is: 55,274.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,085.66 : 181,635.32 = 36,848.57 : x
  2. Step 2: Convert to fraction form
    121,085.66/181,635.32 = 36,848.57/x
  3. Step 3: Cross multiply
    121,085.66x = 181,635.32 × 36,848.57
  4. Step 4: Simplify right side
    121,085.66x = 6,693,001,803.49
  5. Step 5: Solve for x
    x = 6,693,001,803.49/121,085.66
  6. Step 6: Final answer
    x = 55,274.93

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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.