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Finding the Fourth Proportional to 255,901.41, 383,768.96 and 85,077.14

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Solution

The fourth proportional to 255,901.41, 383,768.96 and 85,077.14 is: 127,588.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,901.41 : 383,768.96 = 85,077.14 : x
  2. Step 2: Convert to fraction form
    255,901.41/383,768.96 = 85,077.14/x
  3. Step 3: Cross multiply
    255,901.41x = 383,768.96 × 85,077.14
  4. Step 4: Simplify right side
    255,901.41x = 32,649,963,193.34
  5. Step 5: Solve for x
    x = 32,649,963,193.34/255,901.41
  6. Step 6: Final answer
    x = 127,588.06

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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.