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Finding the Fourth Proportional to 178,039.50, 245,694.51 and 98,551.50

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Solution

The fourth proportional to 178,039.50, 245,694.51 and 98,551.50 is: 136,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,039.50 : 245,694.51 = 98,551.50 : x
  2. Step 2: Convert to fraction form
    178,039.50/245,694.51 = 98,551.50/x
  3. Step 3: Cross multiply
    178,039.50x = 245,694.51 × 98,551.50
  4. Step 4: Simplify right side
    178,039.50x = 24,213,562,502.27
  5. Step 5: Solve for x
    x = 24,213,562,502.27/178,039.50
  6. Step 6: Final answer
    x = 136,001.07

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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.