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Finding the Fourth Proportional to 154,798.09, 213,644.71 and 94,403.77

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Solution

The fourth proportional to 154,798.09, 213,644.71 and 94,403.77 is: 130,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,798.09 : 213,644.71 = 94,403.77 : x
  2. Step 2: Convert to fraction form
    154,798.09/213,644.71 = 94,403.77/x
  3. Step 3: Cross multiply
    154,798.09x = 213,644.71 × 94,403.77
  4. Step 4: Simplify right side
    154,798.09x = 20,168,864,996.33
  5. Step 5: Solve for x
    x = 20,168,864,996.33/154,798.09
  6. Step 6: Final answer
    x = 130,291.44

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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.