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Finding the Fourth Proportional to 66,114.52, 99,172.82 and 66,017.32

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Solution

The fourth proportional to 66,114.52, 99,172.82 and 66,017.32 is: 99,027.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,114.52 : 99,172.82 = 66,017.32 : x
  2. Step 2: Convert to fraction form
    66,114.52/99,172.82 = 66,017.32/x
  3. Step 3: Cross multiply
    66,114.52x = 99,172.82 × 66,017.32
  4. Step 4: Simplify right side
    66,114.52x = 6,547,123,793.24
  5. Step 5: Solve for x
    x = 6,547,123,793.24/66,114.52
  6. Step 6: Final answer
    x = 99,027.02

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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.