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Finding the Fourth Proportional to 121,702.32, 167,709.96 and 93,054.44

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Solution

The fourth proportional to 121,702.32, 167,709.96 and 93,054.44 is: 128,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,702.32 : 167,709.96 = 93,054.44 : x
  2. Step 2: Convert to fraction form
    121,702.32/167,709.96 = 93,054.44/x
  3. Step 3: Cross multiply
    121,702.32x = 167,709.96 × 93,054.44
  4. Step 4: Simplify right side
    121,702.32x = 15,606,156,410.22
  5. Step 5: Solve for x
    x = 15,606,156,410.22/121,702.32
  6. Step 6: Final answer
    x = 128,232.20

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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.