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Finding the Fourth Proportional to 88,908.90, 133,039.35 and 55,644.90

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Solution

The fourth proportional to 88,908.90, 133,039.35 and 55,644.90 is: 83,264.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,908.90 : 133,039.35 = 55,644.90 : x
  2. Step 2: Convert to fraction form
    88,908.90/133,039.35 = 55,644.90/x
  3. Step 3: Cross multiply
    88,908.90x = 133,039.35 × 55,644.90
  4. Step 4: Simplify right side
    88,908.90x = 7,402,961,326.82
  5. Step 5: Solve for x
    x = 7,402,961,326.82/88,908.90
  6. Step 6: Final answer
    x = 83,264.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.