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Finding the Fourth Proportional to 93,174.93, 128,610.42 and 52,915.50

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Solution

The fourth proportional to 93,174.93, 128,610.42 and 52,915.50 is: 73,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,174.93 : 128,610.42 = 52,915.50 : x
  2. Step 2: Convert to fraction form
    93,174.93/128,610.42 = 52,915.50/x
  3. Step 3: Cross multiply
    93,174.93x = 128,610.42 × 52,915.50
  4. Step 4: Simplify right side
    93,174.93x = 6,805,484,679.51
  5. Step 5: Solve for x
    x = 6,805,484,679.51/93,174.93
  6. Step 6: Final answer
    x = 73,039.87

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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.