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Finding the Fourth Proportional to 352,133.10, 528,205.22 and 85,898.65

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Solution

The fourth proportional to 352,133.10, 528,205.22 and 85,898.65 is: 128,849.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,133.10 : 528,205.22 = 85,898.65 : x
  2. Step 2: Convert to fraction form
    352,133.10/528,205.22 = 85,898.65/x
  3. Step 3: Cross multiply
    352,133.10x = 528,205.22 × 85,898.65
  4. Step 4: Simplify right side
    352,133.10x = 45,372,115,320.95
  5. Step 5: Solve for x
    x = 45,372,115,320.95/352,133.10
  6. Step 6: Final answer
    x = 128,849.33

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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.