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Finding the Fourth Proportional to 172,455.26, 237,784.70 and 118,033.68

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Solution

The fourth proportional to 172,455.26, 237,784.70 and 118,033.68 is: 162,747.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,455.26 : 237,784.70 = 118,033.68 : x
  2. Step 2: Convert to fraction form
    172,455.26/237,784.70 = 118,033.68/x
  3. Step 3: Cross multiply
    172,455.26x = 237,784.70 × 118,033.68
  4. Step 4: Simplify right side
    172,455.26x = 28,066,603,483.78
  5. Step 5: Solve for x
    x = 28,066,603,483.78/172,455.26
  6. Step 6: Final answer
    x = 162,747.16

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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.