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Finding the Fourth Proportional to 255,682.35, 383,578.88 and 97,910.81

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Solution

The fourth proportional to 255,682.35, 383,578.88 and 97,910.81 is: 146,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,682.35 : 383,578.88 = 97,910.81 : x
  2. Step 2: Convert to fraction form
    255,682.35/383,578.88 = 97,910.81/x
  3. Step 3: Cross multiply
    255,682.35x = 383,578.88 × 97,910.81
  4. Step 4: Simplify right side
    255,682.35x = 37,556,516,432.24
  5. Step 5: Solve for x
    x = 37,556,516,432.24/255,682.35
  6. Step 6: Final answer
    x = 146,887.40

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1.5x scale

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.