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Finding the Fourth Proportional to 190,279.83, 285,420.42 and 63,916.46

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Solution

The fourth proportional to 190,279.83, 285,420.42 and 63,916.46 is: 95,874.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,279.83 : 285,420.42 = 63,916.46 : x
  2. Step 2: Convert to fraction form
    190,279.83/285,420.42 = 63,916.46/x
  3. Step 3: Cross multiply
    190,279.83x = 285,420.42 × 63,916.46
  4. Step 4: Simplify right side
    190,279.83x = 18,243,062,858.11
  5. Step 5: Solve for x
    x = 18,243,062,858.11/190,279.83
  6. Step 6: Final answer
    x = 95,874.92

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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.