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Finding the Fourth Proportional to 163,969.60, 246,069.60 and 70,542.40

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Solution

The fourth proportional to 163,969.60, 246,069.60 and 70,542.40 is: 105,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,969.60 : 246,069.60 = 70,542.40 : x
  2. Step 2: Convert to fraction form
    163,969.60/246,069.60 = 70,542.40/x
  3. Step 3: Cross multiply
    163,969.60x = 246,069.60 × 70,542.40
  4. Step 4: Simplify right side
    163,969.60x = 17,358,340,151.04
  5. Step 5: Solve for x
    x = 17,358,340,151.04/163,969.60
  6. Step 6: Final answer
    x = 105,863.16

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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.