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Finding the Fourth Proportional to 132,603.72, 183,015.86 and 84,854.76

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Solution

The fourth proportional to 132,603.72, 183,015.86 and 84,854.76 is: 117,114.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,603.72 : 183,015.86 = 84,854.76 : x
  2. Step 2: Convert to fraction form
    132,603.72/183,015.86 = 84,854.76/x
  3. Step 3: Cross multiply
    132,603.72x = 183,015.86 × 84,854.76
  4. Step 4: Simplify right side
    132,603.72x = 15,529,766,876.49
  5. Step 5: Solve for x
    x = 15,529,766,876.49/132,603.72
  6. Step 6: Final answer
    x = 117,114.11

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1.5x scale

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.