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Finding the Fourth Proportional to 85,678.85, 118,232.53 and 46,915.67

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Solution

The fourth proportional to 85,678.85, 118,232.53 and 46,915.67 is: 64,741.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,678.85 : 118,232.53 = 46,915.67 : x
  2. Step 2: Convert to fraction form
    85,678.85/118,232.53 = 46,915.67/x
  3. Step 3: Cross multiply
    85,678.85x = 118,232.53 × 46,915.67
  4. Step 4: Simplify right side
    85,678.85x = 5,546,957,652.29
  5. Step 5: Solve for x
    x = 5,546,957,652.29/85,678.85
  6. Step 6: Final answer
    x = 64,741.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.