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Finding the Fourth Proportional to 163,625.40, 245,437.20 and 45,295.92

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Solution

The fourth proportional to 163,625.40, 245,437.20 and 45,295.92 is: 67,943.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,625.40 : 245,437.20 = 45,295.92 : x
  2. Step 2: Convert to fraction form
    163,625.40/245,437.20 = 45,295.92/x
  3. Step 3: Cross multiply
    163,625.40x = 245,437.20 × 45,295.92
  4. Step 4: Simplify right side
    163,625.40x = 11,117,303,776.22
  5. Step 5: Solve for x
    x = 11,117,303,776.22/163,625.40
  6. Step 6: Final answer
    x = 67,943.63

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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.