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Finding the Fourth Proportional to 448,423.08, 672,740.72 and 178,566.84

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Solution

The fourth proportional to 448,423.08, 672,740.72 and 178,566.84 is: 267,892.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,423.08 : 672,740.72 = 178,566.84 : x
  2. Step 2: Convert to fraction form
    448,423.08/672,740.72 = 178,566.84/x
  3. Step 3: Cross multiply
    448,423.08x = 672,740.72 × 178,566.84
  4. Step 4: Simplify right side
    448,423.08x = 120,129,184,509.73
  5. Step 5: Solve for x
    x = 120,129,184,509.73/448,423.08
  6. Step 6: Final answer
    x = 267,892.51

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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.