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Finding the Fourth Proportional to 163,566.80, 245,506.80 and 84,737.60

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Solution

The fourth proportional to 163,566.80, 245,506.80 and 84,737.60 is: 127,187.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,566.80 : 245,506.80 = 84,737.60 : x
  2. Step 2: Convert to fraction form
    163,566.80/245,506.80 = 84,737.60/x
  3. Step 3: Cross multiply
    163,566.80x = 245,506.80 × 84,737.60
  4. Step 4: Simplify right side
    163,566.80x = 20,803,657,015.68
  5. Step 5: Solve for x
    x = 20,803,657,015.68/163,566.80
  6. Step 6: Final answer
    x = 127,187.53

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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.