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Finding the Fourth Proportional to 302,613.90, 454,066.65 and 213,675.90

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Solution

The fourth proportional to 302,613.90, 454,066.65 and 213,675.90 is: 320,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,613.90 : 454,066.65 = 213,675.90 : x
  2. Step 2: Convert to fraction form
    302,613.90/454,066.65 = 213,675.90/x
  3. Step 3: Cross multiply
    302,613.90x = 454,066.65 × 213,675.90
  4. Step 4: Simplify right side
    302,613.90x = 97,023,100,098.74
  5. Step 5: Solve for x
    x = 97,023,100,098.74/302,613.90
  6. Step 6: Final answer
    x = 320,616.80

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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.