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Finding the Fourth Proportional to 173,458, 239,372.36 and 93,970

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Solution

The fourth proportional to 173,458, 239,372.36 and 93,970 is: 129,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,458 : 239,372.36 = 93,970 : x
  2. Step 2: Convert to fraction form
    173,458/239,372.36 = 93,970/x
  3. Step 3: Cross multiply
    173,458x = 239,372.36 × 93,970
  4. Step 4: Simplify right side
    173,458x = 22,493,820,669.20
  5. Step 5: Solve for x
    x = 22,493,820,669.20/173,458
  6. Step 6: Final answer
    x = 129,678.77

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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.