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Finding the Fourth Proportional to 121,702.57, 167,710.31 and 93,054.69

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Solution

The fourth proportional to 121,702.57, 167,710.31 and 93,054.69 is: 128,232.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,702.57 : 167,710.31 = 93,054.69 : x
  2. Step 2: Convert to fraction form
    121,702.57/167,710.31 = 93,054.69/x
  3. Step 3: Cross multiply
    121,702.57x = 167,710.31 × 93,054.69
  4. Step 4: Simplify right side
    121,702.57x = 15,606,230,441.58
  5. Step 5: Solve for x
    x = 15,606,230,441.58/121,702.57
  6. Step 6: Final answer
    x = 128,232.55

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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.