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Finding the Fourth Proportional to 163,402.80, 245,111.40 and 92,324.40

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Solution

The fourth proportional to 163,402.80, 245,111.40 and 92,324.40 is: 138,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,402.80 : 245,111.40 = 92,324.40 : x
  2. Step 2: Convert to fraction form
    163,402.80/245,111.40 = 92,324.40/x
  3. Step 3: Cross multiply
    163,402.80x = 245,111.40 × 92,324.40
  4. Step 4: Simplify right side
    163,402.80x = 22,629,762,938.16
  5. Step 5: Solve for x
    x = 22,629,762,938.16/163,402.80
  6. Step 6: Final answer
    x = 138,490.67

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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.