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Finding the Fourth Proportional to 104,877.69, 144,726.53 and 61,274.28

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Solution

The fourth proportional to 104,877.69, 144,726.53 and 61,274.28 is: 84,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,877.69 : 144,726.53 = 61,274.28 : x
  2. Step 2: Convert to fraction form
    104,877.69/144,726.53 = 61,274.28/x
  3. Step 3: Cross multiply
    104,877.69x = 144,726.53 × 61,274.28
  4. Step 4: Simplify right side
    104,877.69x = 8,868,013,922.65
  5. Step 5: Solve for x
    x = 8,868,013,922.65/104,877.69
  6. Step 6: Final answer
    x = 84,555.77

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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.