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Finding the Fourth Proportional to 262,798.16, 394,492.08 and 105,136.52

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Solution

The fourth proportional to 262,798.16, 394,492.08 and 105,136.52 is: 157,822.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,798.16 : 394,492.08 = 105,136.52 : x
  2. Step 2: Convert to fraction form
    262,798.16/394,492.08 = 105,136.52/x
  3. Step 3: Cross multiply
    262,798.16x = 394,492.08 × 105,136.52
  4. Step 4: Simplify right side
    262,798.16x = 41,475,524,458.76
  5. Step 5: Solve for x
    x = 41,475,524,458.76/262,798.16
  6. Step 6: Final answer
    x = 157,822.74

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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.