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Finding the Fourth Proportional to 199,638.68, 299,501.04 and 57,482.97

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Solution

The fourth proportional to 199,638.68, 299,501.04 and 57,482.97 is: 86,236.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,638.68 : 299,501.04 = 57,482.97 : x
  2. Step 2: Convert to fraction form
    199,638.68/299,501.04 = 57,482.97/x
  3. Step 3: Cross multiply
    199,638.68x = 299,501.04 × 57,482.97
  4. Step 4: Simplify right side
    199,638.68x = 17,216,208,389.72
  5. Step 5: Solve for x
    x = 17,216,208,389.72/199,638.68
  6. Step 6: Final answer
    x = 86,236.84

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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.