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Finding the Fourth Proportional to 302,023.60, 452,920.20 and 91,591.60

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Solution

The fourth proportional to 302,023.60, 452,920.20 and 91,591.60 is: 137,352.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,023.60 : 452,920.20 = 91,591.60 : x
  2. Step 2: Convert to fraction form
    302,023.60/452,920.20 = 91,591.60/x
  3. Step 3: Cross multiply
    302,023.60x = 452,920.20 × 91,591.60
  4. Step 4: Simplify right side
    302,023.60x = 41,483,685,790.32
  5. Step 5: Solve for x
    x = 41,483,685,790.32/302,023.60
  6. Step 6: Final answer
    x = 137,352.46

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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.