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Finding the Fourth Proportional to 255,683.26, 383,389.80 and 113,466.76

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Solution

The fourth proportional to 255,683.26, 383,389.80 and 113,466.76 is: 170,140.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,683.26 : 383,389.80 = 113,466.76 : x
  2. Step 2: Convert to fraction form
    255,683.26/383,389.80 = 113,466.76/x
  3. Step 3: Cross multiply
    255,683.26x = 383,389.80 × 113,466.76
  4. Step 4: Simplify right side
    255,683.26x = 43,501,998,423.05
  5. Step 5: Solve for x
    x = 43,501,998,423.05/255,683.26
  6. Step 6: Final answer
    x = 170,140.19

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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.