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Finding the Fourth Proportional to 342,693.51, 514,155.08 and 118,208.90

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Solution

The fourth proportional to 342,693.51, 514,155.08 and 118,208.90 is: 177,352.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,693.51 : 514,155.08 = 118,208.90 : x
  2. Step 2: Convert to fraction form
    342,693.51/514,155.08 = 118,208.90/x
  3. Step 3: Cross multiply
    342,693.51x = 514,155.08 × 118,208.90
  4. Step 4: Simplify right side
    342,693.51x = 60,777,704,160.96
  5. Step 5: Solve for x
    x = 60,777,704,160.96/342,693.51
  6. Step 6: Final answer
    x = 177,352.95

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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.