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Finding the Fourth Proportional to 207,704.10, 286,631.80 and 112,210.76

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Solution

The fourth proportional to 207,704.10, 286,631.80 and 112,210.76 is: 154,850.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,704.10 : 286,631.80 = 112,210.76 : x
  2. Step 2: Convert to fraction form
    207,704.10/286,631.80 = 112,210.76/x
  3. Step 3: Cross multiply
    207,704.10x = 286,631.80 × 112,210.76
  4. Step 4: Simplify right side
    207,704.10x = 32,163,172,118.17
  5. Step 5: Solve for x
    x = 32,163,172,118.17/207,704.10
  6. Step 6: Final answer
    x = 154,850.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.