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Finding the Fourth Proportional to 173,355.48, 239,247.54 and 105,366.51

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Solution

The fourth proportional to 173,355.48, 239,247.54 and 105,366.51 is: 145,416.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,355.48 : 239,247.54 = 105,366.51 : x
  2. Step 2: Convert to fraction form
    173,355.48/239,247.54 = 105,366.51/x
  3. Step 3: Cross multiply
    173,355.48x = 239,247.54 × 105,366.51
  4. Step 4: Simplify right side
    173,355.48x = 25,208,678,315.89
  5. Step 5: Solve for x
    x = 25,208,678,315.89/173,355.48
  6. Step 6: Final answer
    x = 145,416.10

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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.