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Finding the Fourth Proportional to 103,595.48, 155,655.90 and 96,629.84

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Solution

The fourth proportional to 103,595.48, 155,655.90 and 96,629.84 is: 145,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,595.48 : 155,655.90 = 96,629.84 : x
  2. Step 2: Convert to fraction form
    103,595.48/155,655.90 = 96,629.84/x
  3. Step 3: Cross multiply
    103,595.48x = 155,655.90 × 96,629.84
  4. Step 4: Simplify right side
    103,595.48x = 15,041,004,712.06
  5. Step 5: Solve for x
    x = 15,041,004,712.06/103,595.48
  6. Step 6: Final answer
    x = 145,189.78

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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.