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Finding the Fourth Proportional to 163,614.96, 245,427.92 and 45,276.40

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Solution

The fourth proportional to 163,614.96, 245,427.92 and 45,276.40 is: 67,916.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,614.96 : 245,427.92 = 45,276.40 : x
  2. Step 2: Convert to fraction form
    163,614.96/245,427.92 = 45,276.40/x
  3. Step 3: Cross multiply
    163,614.96x = 245,427.92 × 45,276.40
  4. Step 4: Simplify right side
    163,614.96x = 11,112,092,677.09
  5. Step 5: Solve for x
    x = 11,112,092,677.09/163,614.96
  6. Step 6: Final answer
    x = 67,916.12

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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.