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Finding the Fourth Proportional to 168,591.37, 232,689.30 and 100,574.30

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Solution

The fourth proportional to 168,591.37, 232,689.30 and 100,574.30 is: 138,812.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,591.37 : 232,689.30 = 100,574.30 : x
  2. Step 2: Convert to fraction form
    168,591.37/232,689.30 = 100,574.30/x
  3. Step 3: Cross multiply
    168,591.37x = 232,689.30 × 100,574.30
  4. Step 4: Simplify right side
    168,591.37x = 23,402,561,798.67
  5. Step 5: Solve for x
    x = 23,402,561,798.67/168,591.37
  6. Step 6: Final answer
    x = 138,812.34

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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.