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Finding the Fourth Proportional to 178,492.70, 246,317.82 and 97,920.84

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Solution

The fourth proportional to 178,492.70, 246,317.82 and 97,920.84 is: 135,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,492.70 : 246,317.82 = 97,920.84 : x
  2. Step 2: Convert to fraction form
    178,492.70/246,317.82 = 97,920.84/x
  3. Step 3: Cross multiply
    178,492.70x = 246,317.82 × 97,920.84
  4. Step 4: Simplify right side
    178,492.70x = 24,119,647,841.37
  5. Step 5: Solve for x
    x = 24,119,647,841.37/178,492.70
  6. Step 6: Final answer
    x = 135,129.60

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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.