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Finding the Fourth Proportional to 118,237.44, 163,170 and 92,774.32

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Solution

The fourth proportional to 118,237.44, 163,170 and 92,774.32 is: 128,030.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,237.44 : 163,170 = 92,774.32 : x
  2. Step 2: Convert to fraction form
    118,237.44/163,170 = 92,774.32/x
  3. Step 3: Cross multiply
    118,237.44x = 163,170 × 92,774.32
  4. Step 4: Simplify right side
    118,237.44x = 15,137,985,794.40
  5. Step 5: Solve for x
    x = 15,137,985,794.40/118,237.44
  6. Step 6: Final answer
    x = 128,030.39

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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.