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Finding the Fourth Proportional to 313,569.48, 432,704.48 and 170,326.45

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Solution

The fourth proportional to 313,569.48, 432,704.48 and 170,326.45 is: 235,038.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,569.48 : 432,704.48 = 170,326.45 : x
  2. Step 2: Convert to fraction form
    313,569.48/432,704.48 = 170,326.45/x
  3. Step 3: Cross multiply
    313,569.48x = 432,704.48 × 170,326.45
  4. Step 4: Simplify right side
    313,569.48x = 73,701,016,190.87
  5. Step 5: Solve for x
    x = 73,701,016,190.87/313,569.48
  6. Step 6: Final answer
    x = 235,038.87

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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.