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Finding the Fourth Proportional to 104,967.40, 144,849.78 and 59,639.40

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Solution

The fourth proportional to 104,967.40, 144,849.78 and 59,639.40 is: 82,299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,967.40 : 144,849.78 = 59,639.40 : x
  2. Step 2: Convert to fraction form
    104,967.40/144,849.78 = 59,639.40/x
  3. Step 3: Cross multiply
    104,967.40x = 144,849.78 × 59,639.40
  4. Step 4: Simplify right side
    104,967.40x = 8,638,753,969.33
  5. Step 5: Solve for x
    x = 8,638,753,969.33/104,967.40
  6. Step 6: Final answer
    x = 82,299.40

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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.