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Finding the Fourth Proportional to 173,710.81, 239,758.28 and 105,750.19

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Solution

The fourth proportional to 173,710.81, 239,758.28 and 105,750.19 is: 145,958.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,710.81 : 239,758.28 = 105,750.19 : x
  2. Step 2: Convert to fraction form
    173,710.81/239,758.28 = 105,750.19/x
  3. Step 3: Cross multiply
    173,710.81x = 239,758.28 × 105,750.19
  4. Step 4: Simplify right side
    173,710.81x = 25,354,483,831.58
  5. Step 5: Solve for x
    x = 25,354,483,831.58/173,710.81
  6. Step 6: Final answer
    x = 145,958.01

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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.