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Finding the Fourth Proportional to 93,414.80, 128,915.53 and 50,975.66

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Solution

The fourth proportional to 93,414.80, 128,915.53 and 50,975.66 is: 70,348.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,414.80 : 128,915.53 = 50,975.66 : x
  2. Step 2: Convert to fraction form
    93,414.80/128,915.53 = 50,975.66/x
  3. Step 3: Cross multiply
    93,414.80x = 128,915.53 × 50,975.66
  4. Step 4: Simplify right side
    93,414.80x = 6,571,554,226.00
  5. Step 5: Solve for x
    x = 6,571,554,226.00/93,414.80
  6. Step 6: Final answer
    x = 70,348.11

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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.