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Finding the Fourth Proportional to 118,166.44, 163,085.34 and 75,149.98

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Solution

The fourth proportional to 118,166.44, 163,085.34 and 75,149.98 is: 103,716.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,166.44 : 163,085.34 = 75,149.98 : x
  2. Step 2: Convert to fraction form
    118,166.44/163,085.34 = 75,149.98/x
  3. Step 3: Cross multiply
    118,166.44x = 163,085.34 × 75,149.98
  4. Step 4: Simplify right side
    118,166.44x = 12,255,860,039.29
  5. Step 5: Solve for x
    x = 12,255,860,039.29/118,166.44
  6. Step 6: Final answer
    x = 103,716.93

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1.5x scale

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.