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Finding the Fourth Proportional to 353,030.56, 487,185.48 and 191,886

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Solution

The fourth proportional to 353,030.56, 487,185.48 and 191,886 is: 264,804.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,030.56 : 487,185.48 = 191,886 : x
  2. Step 2: Convert to fraction form
    353,030.56/487,185.48 = 191,886/x
  3. Step 3: Cross multiply
    353,030.56x = 487,185.48 × 191,886
  4. Step 4: Simplify right side
    353,030.56x = 93,484,073,015.28
  5. Step 5: Solve for x
    x = 93,484,073,015.28/353,030.56
  6. Step 6: Final answer
    x = 264,804.48

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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.