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Finding the Fourth Proportional to 122,093.19, 168,492.11 and 68,377.64

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Solution

The fourth proportional to 122,093.19, 168,492.11 and 68,377.64 is: 94,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,093.19 : 168,492.11 = 68,377.64 : x
  2. Step 2: Convert to fraction form
    122,093.19/168,492.11 = 68,377.64/x
  3. Step 3: Cross multiply
    122,093.19x = 168,492.11 × 68,377.64
  4. Step 4: Simplify right side
    122,093.19x = 11,521,091,656.07
  5. Step 5: Solve for x
    x = 11,521,091,656.07/122,093.19
  6. Step 6: Final answer
    x = 94,363.10

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1.5x scale

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.