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Finding the Fourth Proportional to 176,068.39, 243,068.52 and 137,746.48

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Solution

The fourth proportional to 176,068.39, 243,068.52 and 137,746.48 is: 190,163.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,068.39 : 243,068.52 = 137,746.48 : x
  2. Step 2: Convert to fraction form
    176,068.39/243,068.52 = 137,746.48/x
  3. Step 3: Cross multiply
    176,068.39x = 243,068.52 × 137,746.48
  4. Step 4: Simplify right side
    176,068.39x = 33,481,833,028.81
  5. Step 5: Solve for x
    x = 33,481,833,028.81/176,068.39
  6. Step 6: Final answer
    x = 190,163.79

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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.