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Finding the Fourth Proportional to 255,847.68, 383,762.88 and 68,852.16

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Solution

The fourth proportional to 255,847.68, 383,762.88 and 68,852.16 is: 103,275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,847.68 : 383,762.88 = 68,852.16 : x
  2. Step 2: Convert to fraction form
    255,847.68/383,762.88 = 68,852.16/x
  3. Step 3: Cross multiply
    255,847.68x = 383,762.88 × 68,852.16
  4. Step 4: Simplify right side
    255,847.68x = 26,422,903,215.82
  5. Step 5: Solve for x
    x = 26,422,903,215.82/255,847.68
  6. Step 6: Final answer
    x = 103,275.91

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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.