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Finding the Fourth Proportional to 163,986.80, 245,980.20 and 160,876.40

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Solution

The fourth proportional to 163,986.80, 245,980.20 and 160,876.40 is: 241,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,986.80 : 245,980.20 = 160,876.40 : x
  2. Step 2: Convert to fraction form
    163,986.80/245,980.20 = 160,876.40/x
  3. Step 3: Cross multiply
    163,986.80x = 245,980.20 × 160,876.40
  4. Step 4: Simplify right side
    163,986.80x = 39,572,409,047.28
  5. Step 5: Solve for x
    x = 39,572,409,047.28/163,986.80
  6. Step 6: Final answer
    x = 241,314.60

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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.