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Finding the Fourth Proportional to 293,412.70, 440,032.65 and 115,860.70

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Solution

The fourth proportional to 293,412.70, 440,032.65 and 115,860.70 is: 173,756.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,412.70 : 440,032.65 = 115,860.70 : x
  2. Step 2: Convert to fraction form
    293,412.70/440,032.65 = 115,860.70/x
  3. Step 3: Cross multiply
    293,412.70x = 440,032.65 × 115,860.70
  4. Step 4: Simplify right side
    293,412.70x = 50,982,490,851.86
  5. Step 5: Solve for x
    x = 50,982,490,851.86/293,412.70
  6. Step 6: Final answer
    x = 173,756.93

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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.