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Finding the Fourth Proportional to 355,164.85, 532,751.89 and 118,507.53

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Solution

The fourth proportional to 355,164.85, 532,751.89 and 118,507.53 is: 177,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,164.85 : 532,751.89 = 118,507.53 : x
  2. Step 2: Convert to fraction form
    355,164.85/532,751.89 = 118,507.53/x
  3. Step 3: Cross multiply
    355,164.85x = 532,751.89 × 118,507.53
  4. Step 4: Simplify right side
    355,164.85x = 63,135,109,831.21
  5. Step 5: Solve for x
    x = 63,135,109,831.21/355,164.85
  6. Step 6: Final answer
    x = 177,762.83

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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.