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Finding the Fourth Proportional to 260,431.88, 390,686.82 and 94,258.76

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Solution

The fourth proportional to 260,431.88, 390,686.82 and 94,258.76 is: 141,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,431.88 : 390,686.82 = 94,258.76 : x
  2. Step 2: Convert to fraction form
    260,431.88/390,686.82 = 94,258.76/x
  3. Step 3: Cross multiply
    260,431.88x = 390,686.82 × 94,258.76
  4. Step 4: Simplify right side
    260,431.88x = 36,825,655,201.54
  5. Step 5: Solve for x
    x = 36,825,655,201.54/260,431.88
  6. Step 6: Final answer
    x = 141,402.26

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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.