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Finding the Fourth Proportional to 357,772.46, 536,653.10 and 91,530.68

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Solution

The fourth proportional to 357,772.46, 536,653.10 and 91,530.68 is: 137,294.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,772.46 : 536,653.10 = 91,530.68 : x
  2. Step 2: Convert to fraction form
    357,772.46/536,653.10 = 91,530.68/x
  3. Step 3: Cross multiply
    357,772.46x = 536,653.10 × 91,530.68
  4. Step 4: Simplify right side
    357,772.46x = 49,120,223,167.11
  5. Step 5: Solve for x
    x = 49,120,223,167.11/357,772.46
  6. Step 6: Final answer
    x = 137,294.59

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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.