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Finding the Fourth Proportional to 118,792.37, 163,871.29 and 73,455.86

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Solution

The fourth proportional to 118,792.37, 163,871.29 and 73,455.86 is: 101,330.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,792.37 : 163,871.29 = 73,455.86 : x
  2. Step 2: Convert to fraction form
    118,792.37/163,871.29 = 73,455.86/x
  3. Step 3: Cross multiply
    118,792.37x = 163,871.29 × 73,455.86
  4. Step 4: Simplify right side
    118,792.37x = 12,037,306,536.26
  5. Step 5: Solve for x
    x = 12,037,306,536.26/118,792.37
  6. Step 6: Final answer
    x = 101,330.64

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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.