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Finding the Fourth Proportional to 189,093.21, 260,948.70 and 103,052.22

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Solution

The fourth proportional to 189,093.21, 260,948.70 and 103,052.22 is: 142,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,093.21 : 260,948.70 = 103,052.22 : x
  2. Step 2: Convert to fraction form
    189,093.21/260,948.70 = 103,052.22/x
  3. Step 3: Cross multiply
    189,093.21x = 260,948.70 × 103,052.22
  4. Step 4: Simplify right side
    189,093.21x = 26,891,342,841.11
  5. Step 5: Solve for x
    x = 26,891,342,841.11/189,093.21
  6. Step 6: Final answer
    x = 142,212.10

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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.