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Finding the Fourth Proportional to 163,570.88, 245,356.32 and 43,628.21

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Solution

The fourth proportional to 163,570.88, 245,356.32 and 43,628.21 is: 65,442.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,570.88 : 245,356.32 = 43,628.21 : x
  2. Step 2: Convert to fraction form
    163,570.88/245,356.32 = 43,628.21/x
  3. Step 3: Cross multiply
    163,570.88x = 245,356.32 × 43,628.21
  4. Step 4: Simplify right side
    163,570.88x = 10,704,455,827.01
  5. Step 5: Solve for x
    x = 10,704,455,827.01/163,570.88
  6. Step 6: Final answer
    x = 65,442.31

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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.