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Finding the Fourth Proportional to 255,431.98, 352,496.07 and 148,064.32

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Solution

The fourth proportional to 255,431.98, 352,496.07 and 148,064.32 is: 204,328.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,431.98 : 352,496.07 = 148,064.32 : x
  2. Step 2: Convert to fraction form
    255,431.98/352,496.07 = 148,064.32/x
  3. Step 3: Cross multiply
    255,431.98x = 352,496.07 × 148,064.32
  4. Step 4: Simplify right side
    255,431.98x = 52,192,090,907.22
  5. Step 5: Solve for x
    x = 52,192,090,907.22/255,431.98
  6. Step 6: Final answer
    x = 204,328.73

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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.