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Finding the Fourth Proportional to 127,478.34, 191,210.22 and 48,600.54

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Solution

The fourth proportional to 127,478.34, 191,210.22 and 48,600.54 is: 72,898.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,478.34 : 191,210.22 = 48,600.54 : x
  2. Step 2: Convert to fraction form
    127,478.34/191,210.22 = 48,600.54/x
  3. Step 3: Cross multiply
    127,478.34x = 191,210.22 × 48,600.54
  4. Step 4: Simplify right side
    127,478.34x = 9,292,919,945.52
  5. Step 5: Solve for x
    x = 9,292,919,945.52/127,478.34
  6. Step 6: Final answer
    x = 72,898.03

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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.