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Finding the Fourth Proportional to 170,390.35, 255,585.49 and 45,731.35

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Solution

The fourth proportional to 170,390.35, 255,585.49 and 45,731.35 is: 68,597.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,390.35 : 255,585.49 = 45,731.35 : x
  2. Step 2: Convert to fraction form
    170,390.35/255,585.49 = 45,731.35/x
  3. Step 3: Cross multiply
    170,390.35x = 255,585.49 × 45,731.35
  4. Step 4: Simplify right side
    170,390.35x = 11,688,269,269.45
  5. Step 5: Solve for x
    x = 11,688,269,269.45/170,390.35
  6. Step 6: Final answer
    x = 68,597.01

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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.