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Finding the Fourth Proportional to 163,911.10, 245,731.65 and 73,959.70

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Solution

The fourth proportional to 163,911.10, 245,731.65 and 73,959.70 is: 110,878.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,911.10 : 245,731.65 = 73,959.70 : x
  2. Step 2: Convert to fraction form
    163,911.10/245,731.65 = 73,959.70/x
  3. Step 3: Cross multiply
    163,911.10x = 245,731.65 × 73,959.70
  4. Step 4: Simplify right side
    163,911.10x = 18,174,239,114.51
  5. Step 5: Solve for x
    x = 18,174,239,114.51/163,911.10
  6. Step 6: Final answer
    x = 110,878.64

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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.