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Finding the Fourth Proportional to 173,495.91, 239,411.06 and 105,503.49

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Solution

The fourth proportional to 173,495.91, 239,411.06 and 105,503.49 is: 145,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,495.91 : 239,411.06 = 105,503.49 : x
  2. Step 2: Convert to fraction form
    173,495.91/239,411.06 = 105,503.49/x
  3. Step 3: Cross multiply
    173,495.91x = 239,411.06 × 105,503.49
  4. Step 4: Simplify right side
    173,495.91x = 25,258,701,847.08
  5. Step 5: Solve for x
    x = 25,258,701,847.08/173,495.91
  6. Step 6: Final answer
    x = 145,586.73

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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.