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Finding the Fourth Proportional to 169,698.21, 254,547.20 and 43,338.48

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Solution

The fourth proportional to 169,698.21, 254,547.20 and 43,338.48 is: 65,007.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,698.21 : 254,547.20 = 43,338.48 : x
  2. Step 2: Convert to fraction form
    169,698.21/254,547.20 = 43,338.48/x
  3. Step 3: Cross multiply
    169,698.21x = 254,547.20 × 43,338.48
  4. Step 4: Simplify right side
    169,698.21x = 11,031,688,736.26
  5. Step 5: Solve for x
    x = 11,031,688,736.26/169,698.21
  6. Step 6: Final answer
    x = 65,007.69

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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.