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Finding the Fourth Proportional to 178,911.94, 246,899.01 and 98,347.72

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Solution

The fourth proportional to 178,911.94, 246,899.01 and 98,347.72 is: 135,720.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,911.94 : 246,899.01 = 98,347.72 : x
  2. Step 2: Convert to fraction form
    178,911.94/246,899.01 = 98,347.72/x
  3. Step 3: Cross multiply
    178,911.94x = 246,899.01 × 98,347.72
  4. Step 4: Simplify right side
    178,911.94x = 24,281,954,641.65
  5. Step 5: Solve for x
    x = 24,281,954,641.65/178,911.94
  6. Step 6: Final answer
    x = 135,720.15

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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.