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Finding the Fourth Proportional to 112,217.44, 154,860.60 and 61,916.44

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Solution

The fourth proportional to 112,217.44, 154,860.60 and 61,916.44 is: 85,444.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,217.44 : 154,860.60 = 61,916.44 : x
  2. Step 2: Convert to fraction form
    112,217.44/154,860.60 = 61,916.44/x
  3. Step 3: Cross multiply
    112,217.44x = 154,860.60 × 61,916.44
  4. Step 4: Simplify right side
    112,217.44x = 9,588,417,048.26
  5. Step 5: Solve for x
    x = 9,588,417,048.26/112,217.44
  6. Step 6: Final answer
    x = 85,444.98

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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.