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Finding the Fourth Proportional to 260,431.63, 390,686.44 and 94,258.51

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Solution

The fourth proportional to 260,431.63, 390,686.44 and 94,258.51 is: 141,401.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,431.63 : 390,686.44 = 94,258.51 : x
  2. Step 2: Convert to fraction form
    260,431.63/390,686.44 = 94,258.51/x
  3. Step 3: Cross multiply
    260,431.63x = 390,686.44 × 94,258.51
  4. Step 4: Simplify right side
    260,431.63x = 36,825,519,758.17
  5. Step 5: Solve for x
    x = 36,825,519,758.17/260,431.63
  6. Step 6: Final answer
    x = 141,401.87

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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.