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Finding the Fourth Proportional to 247,852.99, 342,038.27 and 140,443.95

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Solution

The fourth proportional to 247,852.99, 342,038.27 and 140,443.95 is: 193,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,852.99 : 342,038.27 = 140,443.95 : x
  2. Step 2: Convert to fraction form
    247,852.99/342,038.27 = 140,443.95/x
  3. Step 3: Cross multiply
    247,852.99x = 342,038.27 × 140,443.95
  4. Step 4: Simplify right side
    247,852.99x = 48,037,205,689.97
  5. Step 5: Solve for x
    x = 48,037,205,689.97/247,852.99
  6. Step 6: Final answer
    x = 193,813.30

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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.