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Finding the Fourth Proportional to 151,438.77, 208,843.76 and 119,683.53

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Solution

The fourth proportional to 151,438.77, 208,843.76 and 119,683.53 is: 165,051.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,438.77 : 208,843.76 = 119,683.53 : x
  2. Step 2: Convert to fraction form
    151,438.77/208,843.76 = 119,683.53/x
  3. Step 3: Cross multiply
    151,438.77x = 208,843.76 × 119,683.53
  4. Step 4: Simplify right side
    151,438.77x = 24,995,157,816.86
  5. Step 5: Solve for x
    x = 24,995,157,816.86/151,438.77
  6. Step 6: Final answer
    x = 165,051.25

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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.