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Finding the Fourth Proportional to 93,125.30, 139,725.36 and 42,548.30

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Solution

The fourth proportional to 93,125.30, 139,725.36 and 42,548.30 is: 63,839.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,125.30 : 139,725.36 = 42,548.30 : x
  2. Step 2: Convert to fraction form
    93,125.30/139,725.36 = 42,548.30/x
  3. Step 3: Cross multiply
    93,125.30x = 139,725.36 × 42,548.30
  4. Step 4: Simplify right side
    93,125.30x = 5,945,076,534.89
  5. Step 5: Solve for x
    x = 5,945,076,534.89/93,125.30
  6. Step 6: Final answer
    x = 63,839.54

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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.