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Finding the Fourth Proportional to 307,168.23, 423,894.24 and 171,210.92

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Solution

The fourth proportional to 307,168.23, 423,894.24 and 171,210.92 is: 236,272.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,168.23 : 423,894.24 = 171,210.92 : x
  2. Step 2: Convert to fraction form
    307,168.23/423,894.24 = 171,210.92/x
  3. Step 3: Cross multiply
    307,168.23x = 423,894.24 × 171,210.92
  4. Step 4: Simplify right side
    307,168.23x = 72,575,323,872.84
  5. Step 5: Solve for x
    x = 72,575,323,872.84/307,168.23
  6. Step 6: Final answer
    x = 236,272.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.