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Finding the Fourth Proportional to 110,172, 152,037.36 and 59,871

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Solution

The fourth proportional to 110,172, 152,037.36 and 59,871 is: 82,621.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,172 : 152,037.36 = 59,871 : x
  2. Step 2: Convert to fraction form
    110,172/152,037.36 = 59,871/x
  3. Step 3: Cross multiply
    110,172x = 152,037.36 × 59,871
  4. Step 4: Simplify right side
    110,172x = 9,102,628,780.56
  5. Step 5: Solve for x
    x = 9,102,628,780.56/110,172
  6. Step 6: Final answer
    x = 82,621.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.