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Finding the Fourth Proportional to 207,727.89, 286,900.95 and 139,626.63

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Solution

The fourth proportional to 207,727.89, 286,900.95 and 139,626.63 is: 192,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,727.89 : 286,900.95 = 139,626.63 : x
  2. Step 2: Convert to fraction form
    207,727.89/286,900.95 = 139,626.63/x
  3. Step 3: Cross multiply
    207,727.89x = 286,900.95 × 139,626.63
  4. Step 4: Simplify right side
    207,727.89x = 40,059,012,094.17
  5. Step 5: Solve for x
    x = 40,059,012,094.17/207,727.89
  6. Step 6: Final answer
    x = 192,843.69

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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.