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Finding the Fourth Proportional to 70,903.51, 106,247.94 and 42,792.19

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Solution

The fourth proportional to 70,903.51, 106,247.94 and 42,792.19 is: 64,123.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,903.51 : 106,247.94 = 42,792.19 : x
  2. Step 2: Convert to fraction form
    70,903.51/106,247.94 = 42,792.19/x
  3. Step 3: Cross multiply
    70,903.51x = 106,247.94 × 42,792.19
  4. Step 4: Simplify right side
    70,903.51x = 4,546,582,035.59
  5. Step 5: Solve for x
    x = 4,546,582,035.59/70,903.51
  6. Step 6: Final answer
    x = 64,123.51

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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.