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Finding the Fourth Proportional to 163,376.80, 245,065.20 and 148,861.60

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Solution

The fourth proportional to 163,376.80, 245,065.20 and 148,861.60 is: 223,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,376.80 : 245,065.20 = 148,861.60 : x
  2. Step 2: Convert to fraction form
    163,376.80/245,065.20 = 148,861.60/x
  3. Step 3: Cross multiply
    163,376.80x = 245,065.20 × 148,861.60
  4. Step 4: Simplify right side
    163,376.80x = 36,480,797,776.32
  5. Step 5: Solve for x
    x = 36,480,797,776.32/163,376.80
  6. Step 6: Final answer
    x = 223,292.40

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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.