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Finding the Fourth Proportional to 242,242.81, 333,948.65 and 170,399.86

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Solution

The fourth proportional to 242,242.81, 333,948.65 and 170,399.86 is: 234,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,242.81 : 333,948.65 = 170,399.86 : x
  2. Step 2: Convert to fraction form
    242,242.81/333,948.65 = 170,399.86/x
  3. Step 3: Cross multiply
    242,242.81x = 333,948.65 × 170,399.86
  4. Step 4: Simplify right side
    242,242.81x = 56,904,801,520.32
  5. Step 5: Solve for x
    x = 56,904,801,520.32/242,242.81
  6. Step 6: Final answer
    x = 234,908.12

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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.