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Finding the Fourth Proportional to 302,274.60, 453,411.90 and 213,701.10

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Solution

The fourth proportional to 302,274.60, 453,411.90 and 213,701.10 is: 320,551.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,274.60 : 453,411.90 = 213,701.10 : x
  2. Step 2: Convert to fraction form
    302,274.60/453,411.90 = 213,701.10/x
  3. Step 3: Cross multiply
    302,274.60x = 453,411.90 × 213,701.10
  4. Step 4: Simplify right side
    302,274.60x = 96,894,621,783.09
  5. Step 5: Solve for x
    x = 96,894,621,783.09/302,274.60
  6. Step 6: Final answer
    x = 320,551.65

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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.