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Finding the Fourth Proportional to 70,555.65, 105,777.98 and 48,301.57

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Solution

The fourth proportional to 70,555.65, 105,777.98 and 48,301.57 is: 72,414.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,555.65 : 105,777.98 = 48,301.57 : x
  2. Step 2: Convert to fraction form
    70,555.65/105,777.98 = 48,301.57/x
  3. Step 3: Cross multiply
    70,555.65x = 105,777.98 × 48,301.57
  4. Step 4: Simplify right side
    70,555.65x = 5,109,242,505.43
  5. Step 5: Solve for x
    x = 5,109,242,505.43/70,555.65
  6. Step 6: Final answer
    x = 72,414.36

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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.