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Finding the Fourth Proportional to 302,862.30, 454,315.05 and 92,499.90

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Solution

The fourth proportional to 302,862.30, 454,315.05 and 92,499.90 is: 138,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,862.30 : 454,315.05 = 92,499.90 : x
  2. Step 2: Convert to fraction form
    302,862.30/454,315.05 = 92,499.90/x
  3. Step 3: Cross multiply
    302,862.30x = 454,315.05 × 92,499.90
  4. Step 4: Simplify right side
    302,862.30x = 42,024,096,693.50
  5. Step 5: Solve for x
    x = 42,024,096,693.50/302,862.30
  6. Step 6: Final answer
    x = 138,756.45

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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.