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Finding the Fourth Proportional to 387,752.13, 581,628.41 and 177,242.45

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Solution

The fourth proportional to 387,752.13, 581,628.41 and 177,242.45 is: 265,863.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,752.13 : 581,628.41 = 177,242.45 : x
  2. Step 2: Convert to fraction form
    387,752.13/581,628.41 = 177,242.45/x
  3. Step 3: Cross multiply
    387,752.13x = 581,628.41 × 177,242.45
  4. Step 4: Simplify right side
    387,752.13x = 103,089,240,583.65
  5. Step 5: Solve for x
    x = 103,089,240,583.65/387,752.13
  6. Step 6: Final answer
    x = 265,863.76

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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.