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Finding the Fourth Proportional to 163,526.69, 225,531.45 and 115,289.01

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Solution

The fourth proportional to 163,526.69, 225,531.45 and 115,289.01 is: 159,003.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,526.69 : 225,531.45 = 115,289.01 : x
  2. Step 2: Convert to fraction form
    163,526.69/225,531.45 = 115,289.01/x
  3. Step 3: Cross multiply
    163,526.69x = 225,531.45 × 115,289.01
  4. Step 4: Simplify right side
    163,526.69x = 26,001,297,594.36
  5. Step 5: Solve for x
    x = 26,001,297,594.36/163,526.69
  6. Step 6: Final answer
    x = 159,003.39

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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.