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Finding the Fourth Proportional to 292,134.88, 403,145.84 and 157,998.56

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Solution

The fourth proportional to 292,134.88, 403,145.84 and 157,998.56 is: 218,037.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,134.88 : 403,145.84 = 157,998.56 : x
  2. Step 2: Convert to fraction form
    292,134.88/403,145.84 = 157,998.56/x
  3. Step 3: Cross multiply
    292,134.88x = 403,145.84 × 157,998.56
  4. Step 4: Simplify right side
    292,134.88x = 63,696,462,189.99
  5. Step 5: Solve for x
    x = 63,696,462,189.99/292,134.88
  6. Step 6: Final answer
    x = 218,037.85

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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.