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Finding the Fourth Proportional to 238,321, 357,530.73 and 69,846.85

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Solution

The fourth proportional to 238,321, 357,530.73 and 69,846.85 is: 104,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,321 : 357,530.73 = 69,846.85 : x
  2. Step 2: Convert to fraction form
    238,321/357,530.73 = 69,846.85/x
  3. Step 3: Cross multiply
    238,321x = 357,530.73 × 69,846.85
  4. Step 4: Simplify right side
    238,321x = 24,972,395,268.70
  5. Step 5: Solve for x
    x = 24,972,395,268.70/238,321
  6. Step 6: Final answer
    x = 104,784.70

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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.