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Finding the Fourth Proportional to 302,403.80, 453,524.70 and 91,985.24

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Solution

The fourth proportional to 302,403.80, 453,524.70 and 91,985.24 is: 137,953.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,403.80 : 453,524.70 = 91,985.24 : x
  2. Step 2: Convert to fraction form
    302,403.80/453,524.70 = 91,985.24/x
  3. Step 3: Cross multiply
    302,403.80x = 453,524.70 × 91,985.24
  4. Step 4: Simplify right side
    302,403.80x = 41,717,578,375.43
  5. Step 5: Solve for x
    x = 41,717,578,375.43/302,403.80
  6. Step 6: Final answer
    x = 137,953.22

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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.