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Finding the Fourth Proportional to 148,603.56, 205,087.08 and 84,929.04

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Solution

The fourth proportional to 148,603.56, 205,087.08 and 84,929.04 is: 117,210.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,603.56 : 205,087.08 = 84,929.04 : x
  2. Step 2: Convert to fraction form
    148,603.56/205,087.08 = 84,929.04/x
  3. Step 3: Cross multiply
    148,603.56x = 205,087.08 × 84,929.04
  4. Step 4: Simplify right side
    148,603.56x = 17,417,848,820.80
  5. Step 5: Solve for x
    x = 17,417,848,820.80/148,603.56
  6. Step 6: Final answer
    x = 117,210.17

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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.