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Finding the Fourth Proportional to 111,957.52, 154,503.44 and 60,971.76

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Solution

The fourth proportional to 111,957.52, 154,503.44 and 60,971.76 is: 84,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,957.52 : 154,503.44 = 60,971.76 : x
  2. Step 2: Convert to fraction form
    111,957.52/154,503.44 = 60,971.76/x
  3. Step 3: Cross multiply
    111,957.52x = 154,503.44 × 60,971.76
  4. Step 4: Simplify right side
    111,957.52x = 9,420,346,662.85
  5. Step 5: Solve for x
    x = 9,420,346,662.85/111,957.52
  6. Step 6: Final answer
    x = 84,142.15

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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.