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Finding the Fourth Proportional to 121,684.66, 167,923.02 and 67,970.46

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Solution

The fourth proportional to 121,684.66, 167,923.02 and 67,970.46 is: 93,798.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,684.66 : 167,923.02 = 67,970.46 : x
  2. Step 2: Convert to fraction form
    121,684.66/167,923.02 = 67,970.46/x
  3. Step 3: Cross multiply
    121,684.66x = 167,923.02 × 67,970.46
  4. Step 4: Simplify right side
    121,684.66x = 11,413,804,913.99
  5. Step 5: Solve for x
    x = 11,413,804,913.99/121,684.66
  6. Step 6: Final answer
    x = 93,798.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.