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Finding the Fourth Proportional to 124,295.86, 171,523.45 and 75,978.69

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Solution

The fourth proportional to 124,295.86, 171,523.45 and 75,978.69 is: 104,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,295.86 : 171,523.45 = 75,978.69 : x
  2. Step 2: Convert to fraction form
    124,295.86/171,523.45 = 75,978.69/x
  3. Step 3: Cross multiply
    124,295.86x = 171,523.45 × 75,978.69
  4. Step 4: Simplify right side
    124,295.86x = 13,032,127,035.28
  5. Step 5: Solve for x
    x = 13,032,127,035.28/124,295.86
  6. Step 6: Final answer
    x = 104,847.64

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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.