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Finding the Fourth Proportional to 70,352.68, 105,361.50 and 40,708.04

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Solution

The fourth proportional to 70,352.68, 105,361.50 and 40,708.04 is: 60,965.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,352.68 : 105,361.50 = 40,708.04 : x
  2. Step 2: Convert to fraction form
    70,352.68/105,361.50 = 40,708.04/x
  3. Step 3: Cross multiply
    70,352.68x = 105,361.50 × 40,708.04
  4. Step 4: Simplify right side
    70,352.68x = 4,289,060,156.46
  5. Step 5: Solve for x
    x = 4,289,060,156.46/70,352.68
  6. Step 6: Final answer
    x = 60,965.13

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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.