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Finding the Fourth Proportional to 124,533.82, 186,855.54 and 65,355.22

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Solution

The fourth proportional to 124,533.82, 186,855.54 and 65,355.22 is: 98,061.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,533.82 : 186,855.54 = 65,355.22 : x
  2. Step 2: Convert to fraction form
    124,533.82/186,855.54 = 65,355.22/x
  3. Step 3: Cross multiply
    124,533.82x = 186,855.54 × 65,355.22
  4. Step 4: Simplify right side
    124,533.82x = 12,211,984,924.92
  5. Step 5: Solve for x
    x = 12,211,984,924.92/124,533.82
  6. Step 6: Final answer
    x = 98,061.59

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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.