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Finding the Fourth Proportional to 99,362.96, 149,042.28 and 46,743.28

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Solution

The fourth proportional to 99,362.96, 149,042.28 and 46,743.28 is: 70,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,362.96 : 149,042.28 = 46,743.28 : x
  2. Step 2: Convert to fraction form
    99,362.96/149,042.28 = 46,743.28/x
  3. Step 3: Cross multiply
    99,362.96x = 149,042.28 × 46,743.28
  4. Step 4: Simplify right side
    99,362.96x = 6,966,725,025.88
  5. Step 5: Solve for x
    x = 6,966,725,025.88/99,362.96
  6. Step 6: Final answer
    x = 70,113.90

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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.