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Finding the Fourth Proportional to 265,702.89, 398,554.62 and 66,023.28

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Solution

The fourth proportional to 265,702.89, 398,554.62 and 66,023.28 is: 99,034.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,702.89 : 398,554.62 = 66,023.28 : x
  2. Step 2: Convert to fraction form
    265,702.89/398,554.62 = 66,023.28/x
  3. Step 3: Cross multiply
    265,702.89x = 398,554.62 × 66,023.28
  4. Step 4: Simplify right side
    265,702.89x = 26,313,883,271.55
  5. Step 5: Solve for x
    x = 26,313,883,271.55/265,702.89
  6. Step 6: Final answer
    x = 99,034.99

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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.