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Finding the Fourth Proportional to 265,637.59, 398,339.13 and 76,054.93

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Solution

The fourth proportional to 265,637.59, 398,339.13 and 76,054.93 is: 114,048.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,637.59 : 398,339.13 = 76,054.93 : x
  2. Step 2: Convert to fraction form
    265,637.59/398,339.13 = 76,054.93/x
  3. Step 3: Cross multiply
    265,637.59x = 398,339.13 × 76,054.93
  4. Step 4: Simplify right side
    265,637.59x = 30,295,652,276.44
  5. Step 5: Solve for x
    x = 30,295,652,276.44/265,637.59
  6. Step 6: Final answer
    x = 114,048.82

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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.