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Finding the Fourth Proportional to 91,088.34, 136,654.74 and 34,927.44

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Solution

The fourth proportional to 91,088.34, 136,654.74 and 34,927.44 is: 52,399.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,088.34 : 136,654.74 = 34,927.44 : x
  2. Step 2: Convert to fraction form
    91,088.34/136,654.74 = 34,927.44/x
  3. Step 3: Cross multiply
    91,088.34x = 136,654.74 × 34,927.44
  4. Step 4: Simplify right side
    91,088.34x = 4,773,000,232.07
  5. Step 5: Solve for x
    x = 4,773,000,232.07/91,088.34
  6. Step 6: Final answer
    x = 52,399.68

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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.