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Finding the Fourth Proportional to 173,312, 239,170.56 and 93,824

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Solution

The fourth proportional to 173,312, 239,170.56 and 93,824 is: 129,477.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,312 : 239,170.56 = 93,824 : x
  2. Step 2: Convert to fraction form
    173,312/239,170.56 = 93,824/x
  3. Step 3: Cross multiply
    173,312x = 239,170.56 × 93,824
  4. Step 4: Simplify right side
    173,312x = 22,439,938,621.44
  5. Step 5: Solve for x
    x = 22,439,938,621.44/173,312
  6. Step 6: Final answer
    x = 129,477.12

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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.