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Finding the Fourth Proportional to 164,860.80, 247,291.20 and 163,694.40

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Solution

The fourth proportional to 164,860.80, 247,291.20 and 163,694.40 is: 245,541.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,860.80 : 247,291.20 = 163,694.40 : x
  2. Step 2: Convert to fraction form
    164,860.80/247,291.20 = 163,694.40/x
  3. Step 3: Cross multiply
    164,860.80x = 247,291.20 × 163,694.40
  4. Step 4: Simplify right side
    164,860.80x = 40,480,184,609.28
  5. Step 5: Solve for x
    x = 40,480,184,609.28/164,860.80
  6. Step 6: Final answer
    x = 245,541.60

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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.