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Finding the Fourth Proportional to 207,894.83, 286,894.62 and 112,401.30

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Solution

The fourth proportional to 207,894.83, 286,894.62 and 112,401.30 is: 155,113.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,894.83 : 286,894.62 = 112,401.30 : x
  2. Step 2: Convert to fraction form
    207,894.83/286,894.62 = 112,401.30/x
  3. Step 3: Cross multiply
    207,894.83x = 286,894.62 × 112,401.30
  4. Step 4: Simplify right side
    207,894.83x = 32,247,327,814.77
  5. Step 5: Solve for x
    x = 32,247,327,814.77/207,894.83
  6. Step 6: Final answer
    x = 155,113.66

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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.