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Finding the Fourth Proportional to 169,731.69, 254,223.64 and 113,307.49

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Solution

The fourth proportional to 169,731.69, 254,223.64 and 113,307.49 is: 169,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,731.69 : 254,223.64 = 113,307.49 : x
  2. Step 2: Convert to fraction form
    169,731.69/254,223.64 = 113,307.49/x
  3. Step 3: Cross multiply
    169,731.69x = 254,223.64 × 113,307.49
  4. Step 4: Simplify right side
    169,731.69x = 28,805,442,547.06
  5. Step 5: Solve for x
    x = 28,805,442,547.06/169,731.69
  6. Step 6: Final answer
    x = 169,711.63

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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.