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Finding the Fourth Proportional to 163,907.10, 245,725.65 and 73,955.70

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Solution

The fourth proportional to 163,907.10, 245,725.65 and 73,955.70 is: 110,872.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,907.10 : 245,725.65 = 73,955.70 : x
  2. Step 2: Convert to fraction form
    163,907.10/245,725.65 = 73,955.70/x
  3. Step 3: Cross multiply
    163,907.10x = 245,725.65 × 73,955.70
  4. Step 4: Simplify right side
    163,907.10x = 18,172,812,453.71
  5. Step 5: Solve for x
    x = 18,172,812,453.71/163,907.10
  6. Step 6: Final answer
    x = 110,872.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.