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Finding the Fourth Proportional to 99,460.60, 137,255.49 and 54,138.44

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Solution

The fourth proportional to 99,460.60, 137,255.49 and 54,138.44 is: 74,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,460.60 : 137,255.49 = 54,138.44 : x
  2. Step 2: Convert to fraction form
    99,460.60/137,255.49 = 54,138.44/x
  3. Step 3: Cross multiply
    99,460.60x = 137,255.49 × 54,138.44
  4. Step 4: Simplify right side
    99,460.60x = 7,430,798,453.17
  5. Step 5: Solve for x
    x = 7,430,798,453.17/99,460.60
  6. Step 6: Final answer
    x = 74,710.98

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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.