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Finding the Fourth Proportional to 109,548.99, 151,184.52 and 61,784.91

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Solution

The fourth proportional to 109,548.99, 151,184.52 and 61,784.91 is: 85,267.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,548.99 : 151,184.52 = 61,784.91 : x
  2. Step 2: Convert to fraction form
    109,548.99/151,184.52 = 61,784.91/x
  3. Step 3: Cross multiply
    109,548.99x = 151,184.52 × 61,784.91
  4. Step 4: Simplify right side
    109,548.99x = 9,340,921,961.59
  5. Step 5: Solve for x
    x = 9,340,921,961.59/109,548.99
  6. Step 6: Final answer
    x = 85,267.08

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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.