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Finding the Fourth Proportional to 254,802.60, 351,631.52 and 140,086.21

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Solution

The fourth proportional to 254,802.60, 351,631.52 and 140,086.21 is: 193,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,802.60 : 351,631.52 = 140,086.21 : x
  2. Step 2: Convert to fraction form
    254,802.60/351,631.52 = 140,086.21/x
  3. Step 3: Cross multiply
    254,802.60x = 351,631.52 × 140,086.21
  4. Step 4: Simplify right side
    254,802.60x = 49,258,726,953.34
  5. Step 5: Solve for x
    x = 49,258,726,953.34/254,802.60
  6. Step 6: Final answer
    x = 193,321.13

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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.