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Finding the Fourth Proportional to 255,597.66, 383,567.13 and 89,385.66

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Solution

The fourth proportional to 255,597.66, 383,567.13 and 89,385.66 is: 134,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,597.66 : 383,567.13 = 89,385.66 : x
  2. Step 2: Convert to fraction form
    255,597.66/383,567.13 = 89,385.66/x
  3. Step 3: Cross multiply
    255,597.66x = 383,567.13 × 89,385.66
  4. Step 4: Simplify right side
    255,597.66x = 34,285,401,069.36
  5. Step 5: Solve for x
    x = 34,285,401,069.36/255,597.66
  6. Step 6: Final answer
    x = 134,138.16

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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.