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Finding the Fourth Proportional to 115,436.48, 159,301.28 and 62,444.48

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Solution

The fourth proportional to 115,436.48, 159,301.28 and 62,444.48 is: 86,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,436.48 : 159,301.28 = 62,444.48 : x
  2. Step 2: Convert to fraction form
    115,436.48/159,301.28 = 62,444.48/x
  3. Step 3: Cross multiply
    115,436.48x = 159,301.28 × 62,444.48
  4. Step 4: Simplify right side
    115,436.48x = 9,947,485,592.93
  5. Step 5: Solve for x
    x = 9,947,485,592.93/115,436.48
  6. Step 6: Final answer
    x = 86,172.81

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1.5x scale

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.