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Finding the Fourth Proportional to 265,789.06, 398,763.98 and 94,988.40

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Solution

The fourth proportional to 265,789.06, 398,763.98 and 94,988.40 is: 142,511.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,789.06 : 398,763.98 = 94,988.40 : x
  2. Step 2: Convert to fraction form
    265,789.06/398,763.98 = 94,988.40/x
  3. Step 3: Cross multiply
    265,789.06x = 398,763.98 × 94,988.40
  4. Step 4: Simplify right side
    265,789.06x = 37,877,952,437.83
  5. Step 5: Solve for x
    x = 37,877,952,437.83/265,789.06
  6. Step 6: Final answer
    x = 142,511.33

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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.