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Finding the Fourth Proportional to 347,305.88, 520,938.66 and 134,032.07

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Solution

The fourth proportional to 347,305.88, 520,938.66 and 134,032.07 is: 201,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,305.88 : 520,938.66 = 134,032.07 : x
  2. Step 2: Convert to fraction form
    347,305.88/520,938.66 = 134,032.07/x
  3. Step 3: Cross multiply
    347,305.88x = 520,938.66 × 134,032.07
  4. Step 4: Simplify right side
    347,305.88x = 69,822,486,942.83
  5. Step 5: Solve for x
    x = 69,822,486,942.83/347,305.88
  6. Step 6: Final answer
    x = 201,040.32

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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.