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Finding the Fourth Proportional to 150,184.72, 207,246.72 and 85,644.48

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Solution

The fourth proportional to 150,184.72, 207,246.72 and 85,644.48 is: 118,184.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,184.72 : 207,246.72 = 85,644.48 : x
  2. Step 2: Convert to fraction form
    150,184.72/207,246.72 = 85,644.48/x
  3. Step 3: Cross multiply
    150,184.72x = 207,246.72 × 85,644.48
  4. Step 4: Simplify right side
    150,184.72x = 17,749,537,566.11
  5. Step 5: Solve for x
    x = 17,749,537,566.11/150,184.72
  6. Step 6: Final answer
    x = 118,184.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.