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Finding the Fourth Proportional to 302,049.90, 453,129.48 and 124,458.12

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Solution

The fourth proportional to 302,049.90, 453,129.48 and 124,458.12 is: 186,709.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,049.90 : 453,129.48 = 124,458.12 : x
  2. Step 2: Convert to fraction form
    302,049.90/453,129.48 = 124,458.12/x
  3. Step 3: Cross multiply
    302,049.90x = 453,129.48 × 124,458.12
  4. Step 4: Simplify right side
    302,049.90x = 56,395,643,197.38
  5. Step 5: Solve for x
    x = 56,395,643,197.38/302,049.90
  6. Step 6: Final answer
    x = 186,709.69

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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.