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Finding the Fourth Proportional to 448,519.60, 672,647.32 and 167,971.24

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Solution

The fourth proportional to 448,519.60, 672,647.32 and 167,971.24 is: 251,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,519.60 : 672,647.32 = 167,971.24 : x
  2. Step 2: Convert to fraction form
    448,519.60/672,647.32 = 167,971.24/x
  3. Step 3: Cross multiply
    448,519.60x = 672,647.32 × 167,971.24
  4. Step 4: Simplify right side
    448,519.60x = 112,985,404,423.08
  5. Step 5: Solve for x
    x = 112,985,404,423.08/448,519.60
  6. Step 6: Final answer
    x = 251,907.40

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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.