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Finding the Fourth Proportional to 169,507.91, 233,905.43 and 100,585.49

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Solution

The fourth proportional to 169,507.91, 233,905.43 and 100,585.49 is: 138,798.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,507.91 : 233,905.43 = 100,585.49 : x
  2. Step 2: Convert to fraction form
    169,507.91/233,905.43 = 100,585.49/x
  3. Step 3: Cross multiply
    169,507.91x = 233,905.43 × 100,585.49
  4. Step 4: Simplify right side
    169,507.91x = 23,527,490,617.76
  5. Step 5: Solve for x
    x = 23,527,490,617.76/169,507.91
  6. Step 6: Final answer
    x = 138,798.78

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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.