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Finding the Fourth Proportional to 127,830.05, 191,745.02 and 34,335.80

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Solution

The fourth proportional to 127,830.05, 191,745.02 and 34,335.80 is: 51,503.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,830.05 : 191,745.02 = 34,335.80 : x
  2. Step 2: Convert to fraction form
    127,830.05/191,745.02 = 34,335.80/x
  3. Step 3: Cross multiply
    127,830.05x = 191,745.02 × 34,335.80
  4. Step 4: Simplify right side
    127,830.05x = 6,583,718,503.87
  5. Step 5: Solve for x
    x = 6,583,718,503.87/127,830.05
  6. Step 6: Final answer
    x = 51,503.68

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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.