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Finding the Fourth Proportional to 157,369.35, 236,123.79 and 82,471.68

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Solution

The fourth proportional to 157,369.35, 236,123.79 and 82,471.68 is: 123,744.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,369.35 : 236,123.79 = 82,471.68 : x
  2. Step 2: Convert to fraction form
    157,369.35/236,123.79 = 82,471.68/x
  3. Step 3: Cross multiply
    157,369.35x = 236,123.79 × 82,471.68
  4. Step 4: Simplify right side
    157,369.35x = 19,473,525,649.27
  5. Step 5: Solve for x
    x = 19,473,525,649.27/157,369.35
  6. Step 6: Final answer
    x = 123,744.08

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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.