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Finding the Fourth Proportional to 190,690.59, 286,082.13 and 57,562.89

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Solution

The fourth proportional to 190,690.59, 286,082.13 and 57,562.89 is: 86,358.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,690.59 : 286,082.13 = 57,562.89 : x
  2. Step 2: Convert to fraction form
    190,690.59/286,082.13 = 57,562.89/x
  3. Step 3: Cross multiply
    190,690.59x = 286,082.13 × 57,562.89
  4. Step 4: Simplify right side
    190,690.59x = 16,467,714,180.16
  5. Step 5: Solve for x
    x = 16,467,714,180.16/190,690.59
  6. Step 6: Final answer
    x = 86,358.29

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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.