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Finding the Fourth Proportional to 264,656.64, 365,221.72 and 143,799.78

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Solution

The fourth proportional to 264,656.64, 365,221.72 and 143,799.78 is: 198,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,656.64 : 365,221.72 = 143,799.78 : x
  2. Step 2: Convert to fraction form
    264,656.64/365,221.72 = 143,799.78/x
  3. Step 3: Cross multiply
    264,656.64x = 365,221.72 × 143,799.78
  4. Step 4: Simplify right side
    264,656.64x = 52,518,802,987.22
  5. Step 5: Solve for x
    x = 52,518,802,987.22/264,656.64
  6. Step 6: Final answer
    x = 198,441.28

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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.