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Finding the Fourth Proportional to 342,886.55, 514,354.46 and 118,243.75

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Solution

The fourth proportional to 342,886.55, 514,354.46 and 118,243.75 is: 177,374.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,886.55 : 514,354.46 = 118,243.75 : x
  2. Step 2: Convert to fraction form
    342,886.55/514,354.46 = 118,243.75/x
  3. Step 3: Cross multiply
    342,886.55x = 514,354.46 × 118,243.75
  4. Step 4: Simplify right side
    342,886.55x = 60,819,198,302.52
  5. Step 5: Solve for x
    x = 60,819,198,302.52/342,886.55
  6. Step 6: Final answer
    x = 177,374.12

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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.