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Finding the Fourth Proportional to 190,472.44, 262,854.36 and 109,916.68

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Solution

The fourth proportional to 190,472.44, 262,854.36 and 109,916.68 is: 151,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,472.44 : 262,854.36 = 109,916.68 : x
  2. Step 2: Convert to fraction form
    190,472.44/262,854.36 = 109,916.68/x
  3. Step 3: Cross multiply
    190,472.44x = 262,854.36 × 109,916.68
  4. Step 4: Simplify right side
    190,472.44x = 28,892,078,574.72
  5. Step 5: Solve for x
    x = 28,892,078,574.72/190,472.44
  6. Step 6: Final answer
    x = 151,686.40

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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.