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Finding the Fourth Proportional to 347,364.76, 520,774.95 and 137,160.04

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Solution

The fourth proportional to 347,364.76, 520,774.95 and 137,160.04 is: 205,632.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,364.76 : 520,774.95 = 137,160.04 : x
  2. Step 2: Convert to fraction form
    347,364.76/520,774.95 = 137,160.04/x
  3. Step 3: Cross multiply
    347,364.76x = 520,774.95 × 137,160.04
  4. Step 4: Simplify right side
    347,364.76x = 71,429,512,973.00
  5. Step 5: Solve for x
    x = 71,429,512,973.00/347,364.76
  6. Step 6: Final answer
    x = 205,632.58

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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.