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Finding the Fourth Proportional to 303,357.10, 455,035.65 and 103,629.33

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Solution

The fourth proportional to 303,357.10, 455,035.65 and 103,629.33 is: 155,444.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,357.10 : 455,035.65 = 103,629.33 : x
  2. Step 2: Convert to fraction form
    303,357.10/455,035.65 = 103,629.33/x
  3. Step 3: Cross multiply
    303,357.10x = 455,035.65 × 103,629.33
  4. Step 4: Simplify right side
    303,357.10x = 47,155,039,535.61
  5. Step 5: Solve for x
    x = 47,155,039,535.61/303,357.10
  6. Step 6: Final answer
    x = 155,444.00

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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.