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Finding the Fourth Proportional to 132,906.63, 183,415.55 and 72,482.25

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Solution

The fourth proportional to 132,906.63, 183,415.55 and 72,482.25 is: 100,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,906.63 : 183,415.55 = 72,482.25 : x
  2. Step 2: Convert to fraction form
    132,906.63/183,415.55 = 72,482.25/x
  3. Step 3: Cross multiply
    132,906.63x = 183,415.55 × 72,482.25
  4. Step 4: Simplify right side
    132,906.63x = 13,294,371,386.58
  5. Step 5: Solve for x
    x = 13,294,371,386.58/132,906.63
  6. Step 6: Final answer
    x = 100,027.90

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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.