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Finding the Fourth Proportional to 302,617.60, 453,148.80 and 223,302.40

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Solution

The fourth proportional to 302,617.60, 453,148.80 and 223,302.40 is: 334,379.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,617.60 : 453,148.80 = 223,302.40 : x
  2. Step 2: Convert to fraction form
    302,617.60/453,148.80 = 223,302.40/x
  3. Step 3: Cross multiply
    302,617.60x = 453,148.80 × 223,302.40
  4. Step 4: Simplify right side
    302,617.60x = 101,189,214,597.12
  5. Step 5: Solve for x
    x = 101,189,214,597.12/302,617.60
  6. Step 6: Final answer
    x = 334,379.81

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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.