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Finding the Fourth Proportional to 353,783.94, 530,745.95 and 101,066.61

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Solution

The fourth proportional to 353,783.94, 530,745.95 and 101,066.61 is: 151,619.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,783.94 : 530,745.95 = 101,066.61 : x
  2. Step 2: Convert to fraction form
    353,783.94/530,745.95 = 101,066.61/x
  3. Step 3: Cross multiply
    353,783.94x = 530,745.95 × 101,066.61
  4. Step 4: Simplify right side
    353,783.94x = 53,640,693,432.40
  5. Step 5: Solve for x
    x = 53,640,693,432.40/353,783.94
  6. Step 6: Final answer
    x = 151,619.92

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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.