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Finding the Fourth Proportional to 91,262.28, 136,904.34 and 35,089.32

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Solution

The fourth proportional to 91,262.28, 136,904.34 and 35,089.32 is: 52,638.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,262.28 : 136,904.34 = 35,089.32 : x
  2. Step 2: Convert to fraction form
    91,262.28/136,904.34 = 35,089.32/x
  3. Step 3: Cross multiply
    91,262.28x = 136,904.34 × 35,089.32
  4. Step 4: Simplify right side
    91,262.28x = 4,803,880,195.65
  5. Step 5: Solve for x
    x = 4,803,880,195.65/91,262.28
  6. Step 6: Final answer
    x = 52,638.18

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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.