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Finding the Fourth Proportional to 191,571.44, 287,258.72 and 102,899.52

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Solution

The fourth proportional to 191,571.44, 287,258.72 and 102,899.52 is: 154,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,571.44 : 287,258.72 = 102,899.52 : x
  2. Step 2: Convert to fraction form
    191,571.44/287,258.72 = 102,899.52/x
  3. Step 3: Cross multiply
    191,571.44x = 287,258.72 × 102,899.52
  4. Step 4: Simplify right side
    191,571.44x = 29,558,784,403.81
  5. Step 5: Solve for x
    x = 29,558,784,403.81/191,571.44
  6. Step 6: Final answer
    x = 154,296.40

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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.