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Finding the Fourth Proportional to 124,779.58, 187,113.78 and 36,012

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Solution

The fourth proportional to 124,779.58, 187,113.78 and 36,012 is: 54,001.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,779.58 : 187,113.78 = 36,012 : x
  2. Step 2: Convert to fraction form
    124,779.58/187,113.78 = 36,012/x
  3. Step 3: Cross multiply
    124,779.58x = 187,113.78 × 36,012
  4. Step 4: Simplify right side
    124,779.58x = 6,738,341,445.36
  5. Step 5: Solve for x
    x = 6,738,341,445.36/124,779.58
  6. Step 6: Final answer
    x = 54,001.96

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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.