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Finding the Fourth Proportional to 127,050, 190,476.58 and 73,659.86

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Solution

The fourth proportional to 127,050, 190,476.58 and 73,659.86 is: 110,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,050 : 190,476.58 = 73,659.86 : x
  2. Step 2: Convert to fraction form
    127,050/190,476.58 = 73,659.86/x
  3. Step 3: Cross multiply
    127,050x = 190,476.58 × 73,659.86
  4. Step 4: Simplify right side
    127,050x = 14,030,478,216.08
  5. Step 5: Solve for x
    x = 14,030,478,216.08/127,050
  6. Step 6: Final answer
    x = 110,432.73

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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.