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Finding the Fourth Proportional to 86,654.34, 129,955.05 and 36,733.50

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Solution

The fourth proportional to 86,654.34, 129,955.05 and 36,733.50 is: 55,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,654.34 : 129,955.05 = 36,733.50 : x
  2. Step 2: Convert to fraction form
    86,654.34/129,955.05 = 36,733.50/x
  3. Step 3: Cross multiply
    86,654.34x = 129,955.05 × 36,733.50
  4. Step 4: Simplify right side
    86,654.34x = 4,773,703,829.18
  5. Step 5: Solve for x
    x = 4,773,703,829.18/86,654.34
  6. Step 6: Final answer
    x = 55,089.03

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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.