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Finding the Fourth Proportional to 70,202.15, 105,204.81 and 36,854.84

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Solution

The fourth proportional to 70,202.15, 105,204.81 and 36,854.84 is: 55,230.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,202.15 : 105,204.81 = 36,854.84 : x
  2. Step 2: Convert to fraction form
    70,202.15/105,204.81 = 36,854.84/x
  3. Step 3: Cross multiply
    70,202.15x = 105,204.81 × 36,854.84
  4. Step 4: Simplify right side
    70,202.15x = 3,877,305,913.76
  5. Step 5: Solve for x
    x = 3,877,305,913.76/70,202.15
  6. Step 6: Final answer
    x = 55,230.59

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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.