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Finding the Fourth Proportional to 303,291.06, 455,017.20 and 103,611.06

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Solution

The fourth proportional to 303,291.06, 455,017.20 and 103,611.06 is: 155,444.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,291.06 : 455,017.20 = 103,611.06 : x
  2. Step 2: Convert to fraction form
    303,291.06/455,017.20 = 103,611.06/x
  3. Step 3: Cross multiply
    303,291.06x = 455,017.20 × 103,611.06
  4. Step 4: Simplify right side
    303,291.06x = 47,144,814,410.23
  5. Step 5: Solve for x
    x = 47,144,814,410.23/303,291.06
  6. Step 6: Final answer
    x = 155,444.13

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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.