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Finding the Fourth Proportional to 192,417.60, 288,772.20 and 125,835.60

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Solution

The fourth proportional to 192,417.60, 288,772.20 and 125,835.60 is: 188,848.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,417.60 : 288,772.20 = 125,835.60 : x
  2. Step 2: Convert to fraction form
    192,417.60/288,772.20 = 125,835.60/x
  3. Step 3: Cross multiply
    192,417.60x = 288,772.20 × 125,835.60
  4. Step 4: Simplify right side
    192,417.60x = 36,337,823,050.32
  5. Step 5: Solve for x
    x = 36,337,823,050.32/192,417.60
  6. Step 6: Final answer
    x = 188,848.75

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1.5x scale

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.