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Finding the Fourth Proportional to 134,824, 186,053.52 and 74,391.52

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Solution

The fourth proportional to 134,824, 186,053.52 and 74,391.52 is: 102,658.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,824 : 186,053.52 = 74,391.52 : x
  2. Step 2: Convert to fraction form
    134,824/186,053.52 = 74,391.52/x
  3. Step 3: Cross multiply
    134,824x = 186,053.52 × 74,391.52
  4. Step 4: Simplify right side
    134,824x = 13,840,804,154.15
  5. Step 5: Solve for x
    x = 13,840,804,154.15/134,824
  6. Step 6: Final answer
    x = 102,658.31

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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.