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Finding the Fourth Proportional to 171,329.91, 236,412.03 and 99,654.63

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Solution

The fourth proportional to 171,329.91, 236,412.03 and 99,654.63 is: 137,509.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,329.91 : 236,412.03 = 99,654.63 : x
  2. Step 2: Convert to fraction form
    171,329.91/236,412.03 = 99,654.63/x
  3. Step 3: Cross multiply
    171,329.91x = 236,412.03 × 99,654.63
  4. Step 4: Simplify right side
    171,329.91x = 23,559,553,377.20
  5. Step 5: Solve for x
    x = 23,559,553,377.20/171,329.91
  6. Step 6: Final answer
    x = 137,509.87

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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.