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Finding the Fourth Proportional to 127,051, 190,478.08 and 73,660.86

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Solution

The fourth proportional to 127,051, 190,478.08 and 73,660.86 is: 110,434.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,051 : 190,478.08 = 73,660.86 : x
  2. Step 2: Convert to fraction form
    127,051/190,478.08 = 73,660.86/x
  3. Step 3: Cross multiply
    127,051x = 190,478.08 × 73,660.86
  4. Step 4: Simplify right side
    127,051x = 14,030,779,183.95
  5. Step 5: Solve for x
    x = 14,030,779,183.95/127,051
  6. Step 6: Final answer
    x = 110,434.23

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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.