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Finding the Fourth Proportional to 108,357.75, 149,544.95 and 62,418.98

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Solution

The fourth proportional to 108,357.75, 149,544.95 and 62,418.98 is: 86,144.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,357.75 : 149,544.95 = 62,418.98 : x
  2. Step 2: Convert to fraction form
    108,357.75/149,544.95 = 62,418.98/x
  3. Step 3: Cross multiply
    108,357.75x = 149,544.95 × 62,418.98
  4. Step 4: Simplify right side
    108,357.75x = 9,334,442,893.47
  5. Step 5: Solve for x
    x = 9,334,442,893.47/108,357.75
  6. Step 6: Final answer
    x = 86,144.67

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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.