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Finding the Fourth Proportional to 139,595.64, 209,393.16 and 41,099.64

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Solution

The fourth proportional to 139,595.64, 209,393.16 and 41,099.64 is: 61,649.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,595.64 : 209,393.16 = 41,099.64 : x
  2. Step 2: Convert to fraction form
    139,595.64/209,393.16 = 41,099.64/x
  3. Step 3: Cross multiply
    139,595.64x = 209,393.16 × 41,099.64
  4. Step 4: Simplify right side
    139,595.64x = 8,605,983,494.46
  5. Step 5: Solve for x
    x = 8,605,983,494.46/139,595.64
  6. Step 6: Final answer
    x = 61,649.37

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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.