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Finding the Fourth Proportional to 111,335.60, 153,468.60 and 84,370.16

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Solution

The fourth proportional to 111,335.60, 153,468.60 and 84,370.16 is: 116,298.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,335.60 : 153,468.60 = 84,370.16 : x
  2. Step 2: Convert to fraction form
    111,335.60/153,468.60 = 84,370.16/x
  3. Step 3: Cross multiply
    111,335.60x = 153,468.60 × 84,370.16
  4. Step 4: Simplify right side
    111,335.60x = 12,948,170,336.98
  5. Step 5: Solve for x
    x = 12,948,170,336.98/111,335.60
  6. Step 6: Final answer
    x = 116,298.56

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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.