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Finding the Fourth Proportional to 177,501.60, 266,155.20 and 72,201.60

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Solution

The fourth proportional to 177,501.60, 266,155.20 and 72,201.60 is: 108,262.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,501.60 : 266,155.20 = 72,201.60 : x
  2. Step 2: Convert to fraction form
    177,501.60/266,155.20 = 72,201.60/x
  3. Step 3: Cross multiply
    177,501.60x = 266,155.20 × 72,201.60
  4. Step 4: Simplify right side
    177,501.60x = 19,216,831,288.32
  5. Step 5: Solve for x
    x = 19,216,831,288.32/177,501.60
  6. Step 6: Final answer
    x = 108,262.86

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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.