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Finding the Fourth Proportional to 85,442.95, 116,886.54 and 85,083.14

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Solution

The fourth proportional to 85,442.95, 116,886.54 and 85,083.14 is: 116,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,442.95 : 116,886.54 = 85,083.14 : x
  2. Step 2: Convert to fraction form
    85,442.95/116,886.54 = 85,083.14/x
  3. Step 3: Cross multiply
    85,442.95x = 116,886.54 × 85,083.14
  4. Step 4: Simplify right side
    85,442.95x = 9,945,074,458.21
  5. Step 5: Solve for x
    x = 9,945,074,458.21/85,442.95
  6. Step 6: Final answer
    x = 116,394.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.