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Finding the Fourth Proportional to 163,098.30, 244,647.45 and 142,362.30

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Solution

The fourth proportional to 163,098.30, 244,647.45 and 142,362.30 is: 213,543.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,098.30 : 244,647.45 = 142,362.30 : x
  2. Step 2: Convert to fraction form
    163,098.30/244,647.45 = 142,362.30/x
  3. Step 3: Cross multiply
    163,098.30x = 244,647.45 × 142,362.30
  4. Step 4: Simplify right side
    163,098.30x = 34,828,573,671.14
  5. Step 5: Solve for x
    x = 34,828,573,671.14/163,098.30
  6. Step 6: Final answer
    x = 213,543.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.