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Finding the Fourth Proportional to 146,575.20, 220,300.20 and 127,329.60

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Solution

The fourth proportional to 146,575.20, 220,300.20 and 127,329.60 is: 191,374.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,575.20 : 220,300.20 = 127,329.60 : x
  2. Step 2: Convert to fraction form
    146,575.20/220,300.20 = 127,329.60/x
  3. Step 3: Cross multiply
    146,575.20x = 220,300.20 × 127,329.60
  4. Step 4: Simplify right side
    146,575.20x = 28,050,736,345.92
  5. Step 5: Solve for x
    x = 28,050,736,345.92/146,575.20
  6. Step 6: Final answer
    x = 191,374.37

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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.