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Finding the Fourth Proportional to 139,886.44, 209,827.61 and 34,705.41

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Solution

The fourth proportional to 139,886.44, 209,827.61 and 34,705.41 is: 52,057.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,886.44 : 209,827.61 = 34,705.41 : x
  2. Step 2: Convert to fraction form
    139,886.44/209,827.61 = 34,705.41/x
  3. Step 3: Cross multiply
    139,886.44x = 209,827.61 × 34,705.41
  4. Step 4: Simplify right side
    139,886.44x = 7,282,153,779.63
  5. Step 5: Solve for x
    x = 7,282,153,779.63/139,886.44
  6. Step 6: Final answer
    x = 52,057.61

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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.