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Finding the Fourth Proportional to 191,692.71, 264,535.08 and 105,651.52

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Solution

The fourth proportional to 191,692.71, 264,535.08 and 105,651.52 is: 145,798.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,692.71 : 264,535.08 = 105,651.52 : x
  2. Step 2: Convert to fraction form
    191,692.71/264,535.08 = 105,651.52/x
  3. Step 3: Cross multiply
    191,692.71x = 264,535.08 × 105,651.52
  4. Step 4: Simplify right side
    191,692.71x = 27,948,534,320.09
  5. Step 5: Solve for x
    x = 27,948,534,320.09/191,692.71
  6. Step 6: Final answer
    x = 145,798.63

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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.