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Finding the Fourth Proportional to 123,875.58, 185,813.30 and 35,129.86

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Solution

The fourth proportional to 123,875.58, 185,813.30 and 35,129.86 is: 52,694.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,875.58 : 185,813.30 = 35,129.86 : x
  2. Step 2: Convert to fraction form
    123,875.58/185,813.30 = 35,129.86/x
  3. Step 3: Cross multiply
    123,875.58x = 185,813.30 × 35,129.86
  4. Step 4: Simplify right side
    123,875.58x = 6,527,595,215.14
  5. Step 5: Solve for x
    x = 6,527,595,215.14/123,875.58
  6. Step 6: Final answer
    x = 52,694.77

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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.