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Finding the Fourth Proportional to 163,970.33, 245,955.51 and 126,584.96

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Solution

The fourth proportional to 163,970.33, 245,955.51 and 126,584.96 is: 189,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,970.33 : 245,955.51 = 126,584.96 : x
  2. Step 2: Convert to fraction form
    163,970.33/245,955.51 = 126,584.96/x
  3. Step 3: Cross multiply
    163,970.33x = 245,955.51 × 126,584.96
  4. Step 4: Simplify right side
    163,970.33x = 31,134,267,165.35
  5. Step 5: Solve for x
    x = 31,134,267,165.35/163,970.33
  6. Step 6: Final answer
    x = 189,877.45

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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.