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Finding the Fourth Proportional to 250,683.92, 345,987.96 and 148,765.60

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Solution

The fourth proportional to 250,683.92, 345,987.96 and 148,765.60 is: 205,322.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,683.92 : 345,987.96 = 148,765.60 : x
  2. Step 2: Convert to fraction form
    250,683.92/345,987.96 = 148,765.60/x
  3. Step 3: Cross multiply
    250,683.92x = 345,987.96 × 148,765.60
  4. Step 4: Simplify right side
    250,683.92x = 51,471,106,462.18
  5. Step 5: Solve for x
    x = 51,471,106,462.18/250,683.92
  6. Step 6: Final answer
    x = 205,322.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.