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Finding the Fourth Proportional to 148,346.88, 204,720.12 and 84,684.48

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Solution

The fourth proportional to 148,346.88, 204,720.12 and 84,684.48 is: 116,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,346.88 : 204,720.12 = 84,684.48 : x
  2. Step 2: Convert to fraction form
    148,346.88/204,720.12 = 84,684.48/x
  3. Step 3: Cross multiply
    148,346.88x = 204,720.12 × 84,684.48
  4. Step 4: Simplify right side
    148,346.88x = 17,336,616,907.74
  5. Step 5: Solve for x
    x = 17,336,616,907.74/148,346.88
  6. Step 6: Final answer
    x = 116,865.40

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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.