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Finding the Fourth Proportional to 313,168.16, 469,752.24 and 91,552.16

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Solution

The fourth proportional to 313,168.16, 469,752.24 and 91,552.16 is: 137,328.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,168.16 : 469,752.24 = 91,552.16 : x
  2. Step 2: Convert to fraction form
    313,168.16/469,752.24 = 91,552.16/x
  3. Step 3: Cross multiply
    313,168.16x = 469,752.24 × 91,552.16
  4. Step 4: Simplify right side
    313,168.16x = 43,006,832,236.84
  5. Step 5: Solve for x
    x = 43,006,832,236.84/313,168.16
  6. Step 6: Final answer
    x = 137,328.24

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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.