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Finding the Fourth Proportional to 207,704.36, 286,631.52 and 112,210.76

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Solution

The fourth proportional to 207,704.36, 286,631.52 and 112,210.76 is: 154,850.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,704.36 : 286,631.52 = 112,210.76 : x
  2. Step 2: Convert to fraction form
    207,704.36/286,631.52 = 112,210.76/x
  3. Step 3: Cross multiply
    207,704.36x = 286,631.52 × 112,210.76
  4. Step 4: Simplify right side
    207,704.36x = 32,163,140,699.16
  5. Step 5: Solve for x
    x = 32,163,140,699.16/207,704.36
  6. Step 6: Final answer
    x = 154,850.58

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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.