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Finding the Fourth Proportional to 297,862.89, 411,040.65 and 170,513.88

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Solution

The fourth proportional to 297,862.89, 411,040.65 and 170,513.88 is: 235,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,862.89 : 411,040.65 = 170,513.88 : x
  2. Step 2: Convert to fraction form
    297,862.89/411,040.65 = 170,513.88/x
  3. Step 3: Cross multiply
    297,862.89x = 411,040.65 × 170,513.88
  4. Step 4: Simplify right side
    297,862.89x = 70,088,136,069.22
  5. Step 5: Solve for x
    x = 70,088,136,069.22/297,862.89
  6. Step 6: Final answer
    x = 235,303.35

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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.