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Finding the Fourth Proportional to 173,430.50, 239,334.09 and 93,942.50

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Solution

The fourth proportional to 173,430.50, 239,334.09 and 93,942.50 is: 129,640.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,430.50 : 239,334.09 = 93,942.50 : x
  2. Step 2: Convert to fraction form
    173,430.50/239,334.09 = 93,942.50/x
  3. Step 3: Cross multiply
    173,430.50x = 239,334.09 × 93,942.50
  4. Step 4: Simplify right side
    173,430.50x = 22,483,642,749.83
  5. Step 5: Solve for x
    x = 22,483,642,749.83/173,430.50
  6. Step 6: Final answer
    x = 129,640.65

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1.5x scale

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.