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Finding the Fourth Proportional to 101,501.64, 152,248.80 and 26,621.20

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Solution

The fourth proportional to 101,501.64, 152,248.80 and 26,621.20 is: 39,930.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,501.64 : 152,248.80 = 26,621.20 : x
  2. Step 2: Convert to fraction form
    101,501.64/152,248.80 = 26,621.20/x
  3. Step 3: Cross multiply
    101,501.64x = 152,248.80 × 26,621.20
  4. Step 4: Simplify right side
    101,501.64x = 4,053,045,754.56
  5. Step 5: Solve for x
    x = 4,053,045,754.56/101,501.64
  6. Step 6: Final answer
    x = 39,930.84

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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.