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Finding the Fourth Proportional to 84,745.17, 116,948.32 and 48,447.40

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Solution

The fourth proportional to 84,745.17, 116,948.32 and 48,447.40 is: 66,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,745.17 : 116,948.32 = 48,447.40 : x
  2. Step 2: Convert to fraction form
    84,745.17/116,948.32 = 48,447.40/x
  3. Step 3: Cross multiply
    84,745.17x = 116,948.32 × 48,447.40
  4. Step 4: Simplify right side
    84,745.17x = 5,665,842,116.67
  5. Step 5: Solve for x
    x = 5,665,842,116.67/84,745.17
  6. Step 6: Final answer
    x = 66,857.40

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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.