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Finding the Fourth Proportional to 185,352.65, 255,779.80 and 100,467.89

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Solution

The fourth proportional to 185,352.65, 255,779.80 and 100,467.89 is: 138,641.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,352.65 : 255,779.80 = 100,467.89 : x
  2. Step 2: Convert to fraction form
    185,352.65/255,779.80 = 100,467.89/x
  3. Step 3: Cross multiply
    185,352.65x = 255,779.80 × 100,467.89
  4. Step 4: Simplify right side
    185,352.65x = 25,697,655,280.55
  5. Step 5: Solve for x
    x = 25,697,655,280.55/185,352.65
  6. Step 6: Final answer
    x = 138,641.97

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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.