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Finding the Fourth Proportional to 183,892.64, 253,778.40 and 103,318.56

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Solution

The fourth proportional to 183,892.64, 253,778.40 and 103,318.56 is: 142,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,892.64 : 253,778.40 = 103,318.56 : x
  2. Step 2: Convert to fraction form
    183,892.64/253,778.40 = 103,318.56/x
  3. Step 3: Cross multiply
    183,892.64x = 253,778.40 × 103,318.56
  4. Step 4: Simplify right side
    183,892.64x = 26,220,018,847.10
  5. Step 5: Solve for x
    x = 26,220,018,847.10/183,892.64
  6. Step 6: Final answer
    x = 142,583.30

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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.