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Finding the Fourth Proportional to 356,005.28, 534,059.76 and 106,706.72

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Solution

The fourth proportional to 356,005.28, 534,059.76 and 106,706.72 is: 160,075.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,005.28 : 534,059.76 = 106,706.72 : x
  2. Step 2: Convert to fraction form
    356,005.28/534,059.76 = 106,706.72/x
  3. Step 3: Cross multiply
    356,005.28x = 534,059.76 × 106,706.72
  4. Step 4: Simplify right side
    356,005.28x = 56,987,765,273.59
  5. Step 5: Solve for x
    x = 56,987,765,273.59/356,005.28
  6. Step 6: Final answer
    x = 160,075.62

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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.