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Finding the Fourth Proportional to 73,210.70, 109,937.51 and 45,683.66

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Solution

The fourth proportional to 73,210.70, 109,937.51 and 45,683.66 is: 68,601.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,210.70 : 109,937.51 = 45,683.66 : x
  2. Step 2: Convert to fraction form
    73,210.70/109,937.51 = 45,683.66/x
  3. Step 3: Cross multiply
    73,210.70x = 109,937.51 × 45,683.66
  4. Step 4: Simplify right side
    73,210.70x = 5,022,347,828.09
  5. Step 5: Solve for x
    x = 5,022,347,828.09/73,210.70
  6. Step 6: Final answer
    x = 68,601.28

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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.