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Finding the Fourth Proportional to 363,242.38, 544,858.10 and 163,421.66

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Solution

The fourth proportional to 363,242.38, 544,858.10 and 163,421.66 is: 245,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,242.38 : 544,858.10 = 163,421.66 : x
  2. Step 2: Convert to fraction form
    363,242.38/544,858.10 = 163,421.66/x
  3. Step 3: Cross multiply
    363,242.38x = 544,858.10 × 163,421.66
  4. Step 4: Simplify right side
    363,242.38x = 89,041,615,166.45
  5. Step 5: Solve for x
    x = 89,041,615,166.45/363,242.38
  6. Step 6: Final answer
    x = 245,130.03

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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.