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Finding the Fourth Proportional to 190,859.70, 285,706.35 and 148,869.30

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Solution

The fourth proportional to 190,859.70, 285,706.35 and 148,869.30 is: 222,849.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,859.70 : 285,706.35 = 148,869.30 : x
  2. Step 2: Convert to fraction form
    190,859.70/285,706.35 = 148,869.30/x
  3. Step 3: Cross multiply
    190,859.70x = 285,706.35 × 148,869.30
  4. Step 4: Simplify right side
    190,859.70x = 42,532,904,330.06
  5. Step 5: Solve for x
    x = 42,532,904,330.06/190,859.70
  6. Step 6: Final answer
    x = 222,849.06

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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.