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Finding the Fourth Proportional to 207,975.73, 287,006.58 and 112,482.43

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Solution

The fourth proportional to 207,975.73, 287,006.58 and 112,482.43 is: 155,225.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,975.73 : 287,006.58 = 112,482.43 : x
  2. Step 2: Convert to fraction form
    207,975.73/287,006.58 = 112,482.43/x
  3. Step 3: Cross multiply
    207,975.73x = 287,006.58 × 112,482.43
  4. Step 4: Simplify right side
    207,975.73x = 32,283,197,544.39
  5. Step 5: Solve for x
    x = 32,283,197,544.39/207,975.73
  6. Step 6: Final answer
    x = 155,225.79

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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.