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Finding the Fourth Proportional to 139,850.96, 209,698.68 and 46,305.68

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Solution

The fourth proportional to 139,850.96, 209,698.68 and 46,305.68 is: 69,432.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,850.96 : 209,698.68 = 46,305.68 : x
  2. Step 2: Convert to fraction form
    139,850.96/209,698.68 = 46,305.68/x
  3. Step 3: Cross multiply
    139,850.96x = 209,698.68 × 46,305.68
  4. Step 4: Simplify right side
    139,850.96x = 9,710,239,972.50
  5. Step 5: Solve for x
    x = 9,710,239,972.50/139,850.96
  6. Step 6: Final answer
    x = 69,432.77

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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.