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Finding the Fourth Proportional to 75,588.21, 104,316.05 and 43,328.21

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Solution

The fourth proportional to 75,588.21, 104,316.05 and 43,328.21 is: 59,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,588.21 : 104,316.05 = 43,328.21 : x
  2. Step 2: Convert to fraction form
    75,588.21/104,316.05 = 43,328.21/x
  3. Step 3: Cross multiply
    75,588.21x = 104,316.05 × 43,328.21
  4. Step 4: Simplify right side
    75,588.21x = 4,519,826,982.55
  5. Step 5: Solve for x
    x = 4,519,826,982.55/75,588.21
  6. Step 6: Final answer
    x = 59,795.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.