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Finding the Fourth Proportional to 85,306.40, 127,851.60 and 32,645.60

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Solution

The fourth proportional to 85,306.40, 127,851.60 and 32,645.60 is: 48,927.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,306.40 : 127,851.60 = 32,645.60 : x
  2. Step 2: Convert to fraction form
    85,306.40/127,851.60 = 32,645.60/x
  3. Step 3: Cross multiply
    85,306.40x = 127,851.60 × 32,645.60
  4. Step 4: Simplify right side
    85,306.40x = 4,173,792,192.96
  5. Step 5: Solve for x
    x = 4,173,792,192.96/85,306.40
  6. Step 6: Final answer
    x = 48,927.07

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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.