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Finding the Fourth Proportional to 173,415, 239,312.70 and 93,927

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Solution

The fourth proportional to 173,415, 239,312.70 and 93,927 is: 129,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,415 : 239,312.70 = 93,927 : x
  2. Step 2: Convert to fraction form
    173,415/239,312.70 = 93,927/x
  3. Step 3: Cross multiply
    173,415x = 239,312.70 × 93,927
  4. Step 4: Simplify right side
    173,415x = 22,477,923,972.90
  5. Step 5: Solve for x
    x = 22,477,923,972.90/173,415
  6. Step 6: Final answer
    x = 129,619.26

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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.