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Finding the Fourth Proportional to 117,267.65, 175,899.80 and 28,521.32

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Solution

The fourth proportional to 117,267.65, 175,899.80 and 28,521.32 is: 42,781.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,267.65 : 175,899.80 = 28,521.32 : x
  2. Step 2: Convert to fraction form
    117,267.65/175,899.80 = 28,521.32/x
  3. Step 3: Cross multiply
    117,267.65x = 175,899.80 × 28,521.32
  4. Step 4: Simplify right side
    117,267.65x = 5,016,893,675.54
  5. Step 5: Solve for x
    x = 5,016,893,675.54/117,267.65
  6. Step 6: Final answer
    x = 42,781.57

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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.