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Finding the Fourth Proportional to 163,368.80, 245,060.40 and 92,290.40

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Solution

The fourth proportional to 163,368.80, 245,060.40 and 92,290.40 is: 138,439.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,368.80 : 245,060.40 = 92,290.40 : x
  2. Step 2: Convert to fraction form
    163,368.80/245,060.40 = 92,290.40/x
  3. Step 3: Cross multiply
    163,368.80x = 245,060.40 × 92,290.40
  4. Step 4: Simplify right side
    163,368.80x = 22,616,722,340.16
  5. Step 5: Solve for x
    x = 22,616,722,340.16/163,368.80
  6. Step 6: Final answer
    x = 138,439.67

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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.