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Finding the Fourth Proportional to 115,663.53, 159,606.92 and 70,335.22

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Solution

The fourth proportional to 115,663.53, 159,606.92 and 70,335.22 is: 97,057.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,663.53 : 159,606.92 = 70,335.22 : x
  2. Step 2: Convert to fraction form
    115,663.53/159,606.92 = 70,335.22/x
  3. Step 3: Cross multiply
    115,663.53x = 159,606.92 × 70,335.22
  4. Step 4: Simplify right side
    115,663.53x = 11,225,987,831.72
  5. Step 5: Solve for x
    x = 11,225,987,831.72/115,663.53
  6. Step 6: Final answer
    x = 97,057.28

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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.