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Finding the Fourth Proportional to 70,897.44, 106,383.24 and 45,931.08

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Solution

The fourth proportional to 70,897.44, 106,383.24 and 45,931.08 is: 68,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,897.44 : 106,383.24 = 45,931.08 : x
  2. Step 2: Convert to fraction form
    70,897.44/106,383.24 = 45,931.08/x
  3. Step 3: Cross multiply
    70,897.44x = 106,383.24 × 45,931.08
  4. Step 4: Simplify right side
    70,897.44x = 4,886,297,107.10
  5. Step 5: Solve for x
    x = 4,886,297,107.10/70,897.44
  6. Step 6: Final answer
    x = 68,920.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.