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Finding the Fourth Proportional to 213,487.92, 294,628.59 and 117,992.55

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Solution

The fourth proportional to 213,487.92, 294,628.59 and 117,992.55 is: 162,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,487.92 : 294,628.59 = 117,992.55 : x
  2. Step 2: Convert to fraction form
    213,487.92/294,628.59 = 117,992.55/x
  3. Step 3: Cross multiply
    213,487.92x = 294,628.59 × 117,992.55
  4. Step 4: Simplify right side
    213,487.92x = 34,763,978,637.00
  5. Step 5: Solve for x
    x = 34,763,978,637.00/213,487.92
  6. Step 6: Final answer
    x = 162,838.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.