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Finding the Fourth Proportional to 91,914.38, 137,836.02 and 35,746.90

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Solution

The fourth proportional to 91,914.38, 137,836.02 and 35,746.90 is: 53,606.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,914.38 : 137,836.02 = 35,746.90 : x
  2. Step 2: Convert to fraction form
    91,914.38/137,836.02 = 35,746.90/x
  3. Step 3: Cross multiply
    91,914.38x = 137,836.02 × 35,746.90
  4. Step 4: Simplify right side
    91,914.38x = 4,927,210,423.34
  5. Step 5: Solve for x
    x = 4,927,210,423.34/91,914.38
  6. Step 6: Final answer
    x = 53,606.52

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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.