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Finding the Fourth Proportional to 254,903.40, 351,765.54 and 141,719.40

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Solution

The fourth proportional to 254,903.40, 351,765.54 and 141,719.40 is: 195,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,903.40 : 351,765.54 = 141,719.40 : x
  2. Step 2: Convert to fraction form
    254,903.40/351,765.54 = 141,719.40/x
  3. Step 3: Cross multiply
    254,903.40x = 351,765.54 × 141,719.40
  4. Step 4: Simplify right side
    254,903.40x = 49,852,001,269.48
  5. Step 5: Solve for x
    x = 49,852,001,269.48/254,903.40
  6. Step 6: Final answer
    x = 195,572.13

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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.