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Finding the Fourth Proportional to 161,048.40, 241,572.60 and 138,412.95

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Solution

The fourth proportional to 161,048.40, 241,572.60 and 138,412.95 is: 207,619.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,048.40 : 241,572.60 = 138,412.95 : x
  2. Step 2: Convert to fraction form
    161,048.40/241,572.60 = 138,412.95/x
  3. Step 3: Cross multiply
    161,048.40x = 241,572.60 × 138,412.95
  4. Step 4: Simplify right side
    161,048.40x = 33,436,776,205.17
  5. Step 5: Solve for x
    x = 33,436,776,205.17/161,048.40
  6. Step 6: Final answer
    x = 207,619.43

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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.