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Finding the Fourth Proportional to 88,018.38, 132,045.95 and 28,849.40

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Solution

The fourth proportional to 88,018.38, 132,045.95 and 28,849.40 is: 43,280.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,018.38 : 132,045.95 = 28,849.40 : x
  2. Step 2: Convert to fraction form
    88,018.38/132,045.95 = 28,849.40/x
  3. Step 3: Cross multiply
    88,018.38x = 132,045.95 × 28,849.40
  4. Step 4: Simplify right side
    88,018.38x = 3,809,445,625.45
  5. Step 5: Solve for x
    x = 3,809,445,625.45/88,018.38
  6. Step 6: Final answer
    x = 43,280.12

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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.