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Finding the Fourth Proportional to 352,399.02, 528,598.52 and 86,156.36

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Solution

The fourth proportional to 352,399.02, 528,598.52 and 86,156.36 is: 129,234.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,399.02 : 528,598.52 = 86,156.36 : x
  2. Step 2: Convert to fraction form
    352,399.02/528,598.52 = 86,156.36/x
  3. Step 3: Cross multiply
    352,399.02x = 528,598.52 × 86,156.36
  4. Step 4: Simplify right side
    352,399.02x = 45,542,124,384.59
  5. Step 5: Solve for x
    x = 45,542,124,384.59/352,399.02
  6. Step 6: Final answer
    x = 129,234.54

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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.