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Finding the Fourth Proportional to 128,567.92, 192,976.26 and 62,054.88

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Solution

The fourth proportional to 128,567.92, 192,976.26 and 62,054.88 is: 93,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,567.92 : 192,976.26 = 62,054.88 : x
  2. Step 2: Convert to fraction form
    128,567.92/192,976.26 = 62,054.88/x
  3. Step 3: Cross multiply
    128,567.92x = 192,976.26 × 62,054.88
  4. Step 4: Simplify right side
    128,567.92x = 11,975,118,657.15
  5. Step 5: Solve for x
    x = 11,975,118,657.15/128,567.92
  6. Step 6: Final answer
    x = 93,142.35

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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.