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Finding the Fourth Proportional to 213,302.79, 320,012.54 and 93,337.94

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Solution

The fourth proportional to 213,302.79, 320,012.54 and 93,337.94 is: 140,032.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,302.79 : 320,012.54 = 93,337.94 : x
  2. Step 2: Convert to fraction form
    213,302.79/320,012.54 = 93,337.94/x
  3. Step 3: Cross multiply
    213,302.79x = 320,012.54 × 93,337.94
  4. Step 4: Simplify right side
    213,302.79x = 29,869,309,191.02
  5. Step 5: Solve for x
    x = 29,869,309,191.02/213,302.79
  6. Step 6: Final answer
    x = 140,032.44

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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.