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Finding the Fourth Proportional to 104,762.48, 157,145.44 and 99,445.68

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Solution

The fourth proportional to 104,762.48, 157,145.44 and 99,445.68 is: 149,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,762.48 : 157,145.44 = 99,445.68 : x
  2. Step 2: Convert to fraction form
    104,762.48/157,145.44 = 99,445.68/x
  3. Step 3: Cross multiply
    104,762.48x = 157,145.44 × 99,445.68
  4. Step 4: Simplify right side
    104,762.48x = 15,627,435,139.70
  5. Step 5: Solve for x
    x = 15,627,435,139.70/104,762.48
  6. Step 6: Final answer
    x = 149,170.15

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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.