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Finding the Fourth Proportional to 88,015.47, 131,970.47 and 28,018.04

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Solution

The fourth proportional to 88,015.47, 131,970.47 and 28,018.04 is: 42,010.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,015.47 : 131,970.47 = 28,018.04 : x
  2. Step 2: Convert to fraction form
    88,015.47/131,970.47 = 28,018.04/x
  3. Step 3: Cross multiply
    88,015.47x = 131,970.47 × 28,018.04
  4. Step 4: Simplify right side
    88,015.47x = 3,697,553,107.34
  5. Step 5: Solve for x
    x = 3,697,553,107.34/88,015.47
  6. Step 6: Final answer
    x = 42,010.26

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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.