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Finding the Fourth Proportional to 173,271, 239,114.70 and 93,783

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Solution

The fourth proportional to 173,271, 239,114.70 and 93,783 is: 129,420.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,271 : 239,114.70 = 93,783 : x
  2. Step 2: Convert to fraction form
    173,271/239,114.70 = 93,783/x
  3. Step 3: Cross multiply
    173,271x = 239,114.70 × 93,783
  4. Step 4: Simplify right side
    173,271x = 22,424,893,910.10
  5. Step 5: Solve for x
    x = 22,424,893,910.10/173,271
  6. Step 6: Final answer
    x = 129,420.93

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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.