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Finding the Fourth Proportional to 294,171.55, 405,943.95 and 163,341.06

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Solution

The fourth proportional to 294,171.55, 405,943.95 and 163,341.06 is: 225,403.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,171.55 : 405,943.95 = 163,341.06 : x
  2. Step 2: Convert to fraction form
    294,171.55/405,943.95 = 163,341.06/x
  3. Step 3: Cross multiply
    294,171.55x = 405,943.95 × 163,341.06
  4. Step 4: Simplify right side
    294,171.55x = 66,307,314,183.83
  5. Step 5: Solve for x
    x = 66,307,314,183.83/294,171.55
  6. Step 6: Final answer
    x = 225,403.56

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1.5x scale

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.