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Finding the Fourth Proportional to 255,301.20, 383,124.60 and 114,987.60

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Solution

The fourth proportional to 255,301.20, 383,124.60 and 114,987.60 is: 172,559.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,301.20 : 383,124.60 = 114,987.60 : x
  2. Step 2: Convert to fraction form
    255,301.20/383,124.60 = 114,987.60/x
  3. Step 3: Cross multiply
    255,301.20x = 383,124.60 × 114,987.60
  4. Step 4: Simplify right side
    255,301.20x = 44,054,578,254.96
  5. Step 5: Solve for x
    x = 44,054,578,254.96/255,301.20
  6. Step 6: Final answer
    x = 172,559.23

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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.