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Finding the Fourth Proportional to 84,813.48, 116,850.06 and 65,627.28

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Solution

The fourth proportional to 84,813.48, 116,850.06 and 65,627.28 is: 90,416.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,813.48 : 116,850.06 = 65,627.28 : x
  2. Step 2: Convert to fraction form
    84,813.48/116,850.06 = 65,627.28/x
  3. Step 3: Cross multiply
    84,813.48x = 116,850.06 × 65,627.28
  4. Step 4: Simplify right side
    84,813.48x = 7,668,551,605.64
  5. Step 5: Solve for x
    x = 7,668,551,605.64/84,813.48
  6. Step 6: Final answer
    x = 90,416.66

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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.