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Finding the Fourth Proportional to 207,894.87, 286,895.33 and 112,401.56

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Solution

The fourth proportional to 207,894.87, 286,895.33 and 112,401.56 is: 155,114.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,894.87 : 286,895.33 = 112,401.56 : x
  2. Step 2: Convert to fraction form
    207,894.87/286,895.33 = 112,401.56/x
  3. Step 3: Cross multiply
    207,894.87x = 286,895.33 × 112,401.56
  4. Step 4: Simplify right side
    207,894.87x = 32,247,484,184.89
  5. Step 5: Solve for x
    x = 32,247,484,184.89/207,894.87
  6. Step 6: Final answer
    x = 155,114.38

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1.5x scale

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.