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Finding the Fourth Proportional to 93,372.54, 128,868.53 and 55,136.18

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Solution

The fourth proportional to 93,372.54, 128,868.53 and 55,136.18 is: 76,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,372.54 : 128,868.53 = 55,136.18 : x
  2. Step 2: Convert to fraction form
    93,372.54/128,868.53 = 55,136.18/x
  3. Step 3: Cross multiply
    93,372.54x = 128,868.53 × 55,136.18
  4. Step 4: Simplify right side
    93,372.54x = 7,105,318,466.42
  5. Step 5: Solve for x
    x = 7,105,318,466.42/93,372.54
  6. Step 6: Final answer
    x = 76,096.45

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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.