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Finding the Fourth Proportional to 160,429.50, 221,451.03 and 93,361.50

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Solution

The fourth proportional to 160,429.50, 221,451.03 and 93,361.50 is: 128,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,429.50 : 221,451.03 = 93,361.50 : x
  2. Step 2: Convert to fraction form
    160,429.50/221,451.03 = 93,361.50/x
  3. Step 3: Cross multiply
    160,429.50x = 221,451.03 × 93,361.50
  4. Step 4: Simplify right side
    160,429.50x = 20,675,000,337.35
  5. Step 5: Solve for x
    x = 20,675,000,337.35/160,429.50
  6. Step 6: Final answer
    x = 128,872.81

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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.