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Finding the Fourth Proportional to 115,056.86, 158,779.64 and 67,300.88

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Solution

The fourth proportional to 115,056.86, 158,779.64 and 67,300.88 is: 92,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,056.86 : 158,779.64 = 67,300.88 : x
  2. Step 2: Convert to fraction form
    115,056.86/158,779.64 = 67,300.88/x
  3. Step 3: Cross multiply
    115,056.86x = 158,779.64 × 67,300.88
  4. Step 4: Simplify right side
    115,056.86x = 10,686,008,872.44
  5. Step 5: Solve for x
    x = 10,686,008,872.44/115,056.86
  6. Step 6: Final answer
    x = 92,875.90

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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.