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Finding the Fourth Proportional to 178,683, 246,580.80 and 98,109.81

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Solution

The fourth proportional to 178,683, 246,580.80 and 98,109.81 is: 135,390.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,683 : 246,580.80 = 98,109.81 : x
  2. Step 2: Convert to fraction form
    178,683/246,580.80 = 98,109.81/x
  3. Step 3: Cross multiply
    178,683x = 246,580.80 × 98,109.81
  4. Step 4: Simplify right side
    178,683x = 24,191,995,437.65
  5. Step 5: Solve for x
    x = 24,191,995,437.65/178,683
  6. Step 6: Final answer
    x = 135,390.58

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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.