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Finding the Fourth Proportional to 104,751.50, 157,128.06 and 29,871.58

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Solution

The fourth proportional to 104,751.50, 157,128.06 and 29,871.58 is: 44,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,751.50 : 157,128.06 = 29,871.58 : x
  2. Step 2: Convert to fraction form
    104,751.50/157,128.06 = 29,871.58/x
  3. Step 3: Cross multiply
    104,751.50x = 157,128.06 × 29,871.58
  4. Step 4: Simplify right side
    104,751.50x = 4,693,663,414.53
  5. Step 5: Solve for x
    x = 4,693,663,414.53/104,751.50
  6. Step 6: Final answer
    x = 44,807.60

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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.