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Finding the Fourth Proportional to 387,544.50, 581,319.18 and 107,064.18

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Solution

The fourth proportional to 387,544.50, 581,319.18 and 107,064.18 is: 160,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,544.50 : 581,319.18 = 107,064.18 : x
  2. Step 2: Convert to fraction form
    387,544.50/581,319.18 = 107,064.18/x
  3. Step 3: Cross multiply
    387,544.50x = 581,319.18 × 107,064.18
  4. Step 4: Simplify right side
    387,544.50x = 62,238,461,324.97
  5. Step 5: Solve for x
    x = 62,238,461,324.97/387,544.50
  6. Step 6: Final answer
    x = 160,596.94

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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.