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Finding the Fourth Proportional to 163,152.71, 244,969.30 and 91,246.50

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Solution

The fourth proportional to 163,152.71, 244,969.30 and 91,246.50 is: 137,004.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,152.71 : 244,969.30 = 91,246.50 : x
  2. Step 2: Convert to fraction form
    163,152.71/244,969.30 = 91,246.50/x
  3. Step 3: Cross multiply
    163,152.71x = 244,969.30 × 91,246.50
  4. Step 4: Simplify right side
    163,152.71x = 22,352,590,391.91
  5. Step 5: Solve for x
    x = 22,352,590,391.91/163,152.71
  6. Step 6: Final answer
    x = 137,004.10

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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.