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Finding the Fourth Proportional to 357,511.74, 536,267.25 and 91,272.30

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Solution

The fourth proportional to 357,511.74, 536,267.25 and 91,272.30 is: 136,908.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,511.74 : 536,267.25 = 91,272.30 : x
  2. Step 2: Convert to fraction form
    357,511.74/536,267.25 = 91,272.30/x
  3. Step 3: Cross multiply
    357,511.74x = 536,267.25 × 91,272.30
  4. Step 4: Simplify right side
    357,511.74x = 48,946,345,322.18
  5. Step 5: Solve for x
    x = 48,946,345,322.18/357,511.74
  6. Step 6: Final answer
    x = 136,908.36

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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.