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Finding the Fourth Proportional to 183,989.04, 253,912.06 and 103,416.30

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Solution

The fourth proportional to 183,989.04, 253,912.06 and 103,416.30 is: 142,718.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,989.04 : 253,912.06 = 103,416.30 : x
  2. Step 2: Convert to fraction form
    183,989.04/253,912.06 = 103,416.30/x
  3. Step 3: Cross multiply
    183,989.04x = 253,912.06 × 103,416.30
  4. Step 4: Simplify right side
    183,989.04x = 26,258,645,770.58
  5. Step 5: Solve for x
    x = 26,258,645,770.58/183,989.04
  6. Step 6: Final answer
    x = 142,718.53

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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.