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Finding the Fourth Proportional to 118,169.53, 163,075.88 and 64,454.54

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Solution

The fourth proportional to 118,169.53, 163,075.88 and 64,454.54 is: 88,948.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,169.53 : 163,075.88 = 64,454.54 : x
  2. Step 2: Convert to fraction form
    118,169.53/163,075.88 = 64,454.54/x
  3. Step 3: Cross multiply
    118,169.53x = 163,075.88 × 64,454.54
  4. Step 4: Simplify right side
    118,169.53x = 10,510,979,692.84
  5. Step 5: Solve for x
    x = 10,510,979,692.84/118,169.53
  6. Step 6: Final answer
    x = 88,948.31

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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.