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Finding the Fourth Proportional to 405,063.82, 607,605.45 and 124,583.50

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Solution

The fourth proportional to 405,063.82, 607,605.45 and 124,583.50 is: 186,878.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,063.82 : 607,605.45 = 124,583.50 : x
  2. Step 2: Convert to fraction form
    405,063.82/607,605.45 = 124,583.50/x
  3. Step 3: Cross multiply
    405,063.82x = 607,605.45 × 124,583.50
  4. Step 4: Simplify right side
    405,063.82x = 75,697,613,580.08
  5. Step 5: Solve for x
    x = 75,697,613,580.08/405,063.82
  6. Step 6: Final answer
    x = 186,878.24

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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.