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Finding the Fourth Proportional to 238,765.86, 358,152.93 and 80,998.38

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Solution

The fourth proportional to 238,765.86, 358,152.93 and 80,998.38 is: 121,498.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,765.86 : 358,152.93 = 80,998.38 : x
  2. Step 2: Convert to fraction form
    238,765.86/358,152.93 = 80,998.38/x
  3. Step 3: Cross multiply
    238,765.86x = 358,152.93 × 80,998.38
  4. Step 4: Simplify right side
    238,765.86x = 29,009,807,122.25
  5. Step 5: Solve for x
    x = 29,009,807,122.25/238,765.86
  6. Step 6: Final answer
    x = 121,498.97

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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.