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Finding the Fourth Proportional to 88,991.94, 133,492.35 and 26,656.50

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Solution

The fourth proportional to 88,991.94, 133,492.35 and 26,656.50 is: 39,986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,991.94 : 133,492.35 = 26,656.50 : x
  2. Step 2: Convert to fraction form
    88,991.94/133,492.35 = 26,656.50/x
  3. Step 3: Cross multiply
    88,991.94x = 133,492.35 × 26,656.50
  4. Step 4: Simplify right side
    88,991.94x = 3,558,438,827.78
  5. Step 5: Solve for x
    x = 3,558,438,827.78/88,991.94
  6. Step 6: Final answer
    x = 39,986.08

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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.