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Finding the Fourth Proportional to 93,461.30, 128,974.91 and 53,174.19

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Solution

The fourth proportional to 93,461.30, 128,974.91 and 53,174.19 is: 73,379.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,461.30 : 128,974.91 = 53,174.19 : x
  2. Step 2: Convert to fraction form
    93,461.30/128,974.91 = 53,174.19/x
  3. Step 3: Cross multiply
    93,461.30x = 128,974.91 × 53,174.19
  4. Step 4: Simplify right side
    93,461.30x = 6,858,136,369.57
  5. Step 5: Solve for x
    x = 6,858,136,369.57/93,461.30
  6. Step 6: Final answer
    x = 73,379.42

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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.