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Finding the Fourth Proportional to 302,230.80, 453,346.20 and 91,841.40

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Solution

The fourth proportional to 302,230.80, 453,346.20 and 91,841.40 is: 137,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,230.80 : 453,346.20 = 91,841.40 : x
  2. Step 2: Convert to fraction form
    302,230.80/453,346.20 = 91,841.40/x
  3. Step 3: Cross multiply
    302,230.80x = 453,346.20 × 91,841.40
  4. Step 4: Simplify right side
    302,230.80x = 41,635,949,692.68
  5. Step 5: Solve for x
    x = 41,635,949,692.68/302,230.80
  6. Step 6: Final answer
    x = 137,762.10

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1.5x scale

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.