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Finding the Fourth Proportional to 121,901.95, 182,870.40 and 37,669.47

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Solution

The fourth proportional to 121,901.95, 182,870.40 and 37,669.47 is: 56,509.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,901.95 : 182,870.40 = 37,669.47 : x
  2. Step 2: Convert to fraction form
    121,901.95/182,870.40 = 37,669.47/x
  3. Step 3: Cross multiply
    121,901.95x = 182,870.40 × 37,669.47
  4. Step 4: Simplify right side
    121,901.95x = 6,888,631,046.69
  5. Step 5: Solve for x
    x = 6,888,631,046.69/121,901.95
  6. Step 6: Final answer
    x = 56,509.61

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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.