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Finding the Fourth Proportional to 207,910.44, 286,916.45 and 112,417.11

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Solution

The fourth proportional to 207,910.44, 286,916.45 and 112,417.11 is: 155,135.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,910.44 : 286,916.45 = 112,417.11 : x
  2. Step 2: Convert to fraction form
    207,910.44/286,916.45 = 112,417.11/x
  3. Step 3: Cross multiply
    207,910.44x = 286,916.45 × 112,417.11
  4. Step 4: Simplify right side
    207,910.44x = 32,254,317,558.37
  5. Step 5: Solve for x
    x = 32,254,317,558.37/207,910.44
  6. Step 6: Final answer
    x = 155,135.63

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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.