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Finding the Fourth Proportional to 328,867.68, 493,245.93 and 92,155.91

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Solution

The fourth proportional to 328,867.68, 493,245.93 and 92,155.91 is: 138,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,867.68 : 493,245.93 = 92,155.91 : x
  2. Step 2: Convert to fraction form
    328,867.68/493,245.93 = 92,155.91/x
  3. Step 3: Cross multiply
    328,867.68x = 493,245.93 × 92,155.91
  4. Step 4: Simplify right side
    328,867.68x = 45,455,525,066.72
  5. Step 5: Solve for x
    x = 45,455,525,066.72/328,867.68
  6. Step 6: Final answer
    x = 138,218.28

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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.