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Finding the Fourth Proportional to 229,730.80, 344,596.20 and 72,007.60

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Solution

The fourth proportional to 229,730.80, 344,596.20 and 72,007.60 is: 108,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,730.80 : 344,596.20 = 72,007.60 : x
  2. Step 2: Convert to fraction form
    229,730.80/344,596.20 = 72,007.60/x
  3. Step 3: Cross multiply
    229,730.80x = 344,596.20 × 72,007.60
  4. Step 4: Simplify right side
    229,730.80x = 24,813,545,331.12
  5. Step 5: Solve for x
    x = 24,813,545,331.12/229,730.80
  6. Step 6: Final answer
    x = 108,011.40

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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.