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Finding the Fourth Proportional to 302,495.40, 453,743.10 and 125,348.40

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Solution

The fourth proportional to 302,495.40, 453,743.10 and 125,348.40 is: 188,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,495.40 : 453,743.10 = 125,348.40 : x
  2. Step 2: Convert to fraction form
    302,495.40/453,743.10 = 125,348.40/x
  3. Step 3: Cross multiply
    302,495.40x = 453,743.10 × 125,348.40
  4. Step 4: Simplify right side
    302,495.40x = 56,875,971,596.04
  5. Step 5: Solve for x
    x = 56,875,971,596.04/302,495.40
  6. Step 6: Final answer
    x = 188,022.60

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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.