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Finding the Fourth Proportional to 195,639.40, 293,459.10 and 125,655.40

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Solution

The fourth proportional to 195,639.40, 293,459.10 and 125,655.40 is: 188,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,639.40 : 293,459.10 = 125,655.40 : x
  2. Step 2: Convert to fraction form
    195,639.40/293,459.10 = 125,655.40/x
  3. Step 3: Cross multiply
    195,639.40x = 293,459.10 × 125,655.40
  4. Step 4: Simplify right side
    195,639.40x = 36,874,720,594.14
  5. Step 5: Solve for x
    x = 36,874,720,594.14/195,639.40
  6. Step 6: Final answer
    x = 188,483.10

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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.