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Finding the Fourth Proportional to 302,334.80, 453,485.40 and 91,956.20

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Solution

The fourth proportional to 302,334.80, 453,485.40 and 91,956.20 is: 137,929.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,334.80 : 453,485.40 = 91,956.20 : x
  2. Step 2: Convert to fraction form
    302,334.80/453,485.40 = 91,956.20/x
  3. Step 3: Cross multiply
    302,334.80x = 453,485.40 × 91,956.20
  4. Step 4: Simplify right side
    302,334.80x = 41,700,794,139.48
  5. Step 5: Solve for x
    x = 41,700,794,139.48/302,334.80
  6. Step 6: Final answer
    x = 137,929.19

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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.