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Finding the Fourth Proportional to 185,405.40, 255,864.50 and 104,844.98

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Solution

The fourth proportional to 185,405.40, 255,864.50 and 104,844.98 is: 144,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,405.40 : 255,864.50 = 104,844.98 : x
  2. Step 2: Convert to fraction form
    185,405.40/255,864.50 = 104,844.98/x
  3. Step 3: Cross multiply
    185,405.40x = 255,864.50 × 104,844.98
  4. Step 4: Simplify right side
    185,405.40x = 26,826,108,385.21
  5. Step 5: Solve for x
    x = 26,826,108,385.21/185,405.40
  6. Step 6: Final answer
    x = 144,688.93

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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.