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Finding the Fourth Proportional to 178,603.67, 246,495.81 and 103,152.17

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Solution

The fourth proportional to 178,603.67, 246,495.81 and 103,152.17 is: 142,363.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,603.67 : 246,495.81 = 103,152.17 : x
  2. Step 2: Convert to fraction form
    178,603.67/246,495.81 = 103,152.17/x
  3. Step 3: Cross multiply
    178,603.67x = 246,495.81 × 103,152.17
  4. Step 4: Simplify right side
    178,603.67x = 25,426,576,464.93
  5. Step 5: Solve for x
    x = 25,426,576,464.93/178,603.67
  6. Step 6: Final answer
    x = 142,363.13

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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.