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Finding the Fourth Proportional to 158,962.62, 238,480.86 and 46,638.30

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Solution

The fourth proportional to 158,962.62, 238,480.86 and 46,638.30 is: 69,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,962.62 : 238,480.86 = 46,638.30 : x
  2. Step 2: Convert to fraction form
    158,962.62/238,480.86 = 46,638.30/x
  3. Step 3: Cross multiply
    158,962.62x = 238,480.86 × 46,638.30
  4. Step 4: Simplify right side
    158,962.62x = 11,122,341,892.94
  5. Step 5: Solve for x
    x = 11,122,341,892.94/158,962.62
  6. Step 6: Final answer
    x = 69,968.28

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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.