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Finding the Fourth Proportional to 235,859.12, 325,442.36 and 139,093.34

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Solution

The fourth proportional to 235,859.12, 325,442.36 and 139,093.34 is: 191,923.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,859.12 : 325,442.36 = 139,093.34 : x
  2. Step 2: Convert to fraction form
    235,859.12/325,442.36 = 139,093.34/x
  3. Step 3: Cross multiply
    235,859.12x = 325,442.36 × 139,093.34
  4. Step 4: Simplify right side
    235,859.12x = 45,266,864,829.88
  5. Step 5: Solve for x
    x = 45,266,864,829.88/235,859.12
  6. Step 6: Final answer
    x = 191,923.32

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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.