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Finding the Fourth Proportional to 192,235.60, 288,007.80 and 156,984.40

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Solution

The fourth proportional to 192,235.60, 288,007.80 and 156,984.40 is: 235,194.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,235.60 : 288,007.80 = 156,984.40 : x
  2. Step 2: Convert to fraction form
    192,235.60/288,007.80 = 156,984.40/x
  3. Step 3: Cross multiply
    192,235.60x = 288,007.80 × 156,984.40
  4. Step 4: Simplify right side
    192,235.60x = 45,212,731,678.32
  5. Step 5: Solve for x
    x = 45,212,731,678.32/192,235.60
  6. Step 6: Final answer
    x = 235,194.37

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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.