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Finding the Fourth Proportional to 190,689.66, 263,157.66 and 105,814.62

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Solution

The fourth proportional to 190,689.66, 263,157.66 and 105,814.62 is: 146,027.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,689.66 : 263,157.66 = 105,814.62 : x
  2. Step 2: Convert to fraction form
    190,689.66/263,157.66 = 105,814.62/x
  3. Step 3: Cross multiply
    190,689.66x = 263,157.66 × 105,814.62
  4. Step 4: Simplify right side
    190,689.66x = 27,845,927,792.99
  5. Step 5: Solve for x
    x = 27,845,927,792.99/190,689.66
  6. Step 6: Final answer
    x = 146,027.47

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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.