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Finding the Fourth Proportional to 247,616.75, 371,440.92 and 70,137.45

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Solution

The fourth proportional to 247,616.75, 371,440.92 and 70,137.45 is: 105,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,616.75 : 371,440.92 = 70,137.45 : x
  2. Step 2: Convert to fraction form
    247,616.75/371,440.92 = 70,137.45/x
  3. Step 3: Cross multiply
    247,616.75x = 371,440.92 × 70,137.45
  4. Step 4: Simplify right side
    247,616.75x = 26,051,918,954.45
  5. Step 5: Solve for x
    x = 26,051,918,954.45/247,616.75
  6. Step 6: Final answer
    x = 105,210.65

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1.5x scale

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.