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Finding the Fourth Proportional to 190,495.52, 262,879.80 and 109,916.72

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Solution

The fourth proportional to 190,495.52, 262,879.80 and 109,916.72 is: 151,682.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,495.52 : 262,879.80 = 109,916.72 : x
  2. Step 2: Convert to fraction form
    190,495.52/262,879.80 = 109,916.72/x
  3. Step 3: Cross multiply
    190,495.52x = 262,879.80 × 109,916.72
  4. Step 4: Simplify right side
    190,495.52x = 28,894,885,370.26
  5. Step 5: Solve for x
    x = 28,894,885,370.26/190,495.52
  6. Step 6: Final answer
    x = 151,682.76

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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.