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Finding the Fourth Proportional to 128,466.16, 192,703.44 and 44,225.42

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Solution

The fourth proportional to 128,466.16, 192,703.44 and 44,225.42 is: 66,339.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,466.16 : 192,703.44 = 44,225.42 : x
  2. Step 2: Convert to fraction form
    128,466.16/192,703.44 = 44,225.42/x
  3. Step 3: Cross multiply
    128,466.16x = 192,703.44 × 44,225.42
  4. Step 4: Simplify right side
    128,466.16x = 8,522,390,569.44
  5. Step 5: Solve for x
    x = 8,522,390,569.44/128,466.16
  6. Step 6: Final answer
    x = 66,339.58

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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.