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Finding the Fourth Proportional to 109,075.80, 163,613.70 and 108,384.60

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Solution

The fourth proportional to 109,075.80, 163,613.70 and 108,384.60 is: 162,576.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,075.80 : 163,613.70 = 108,384.60 : x
  2. Step 2: Convert to fraction form
    109,075.80/163,613.70 = 108,384.60/x
  3. Step 3: Cross multiply
    109,075.80x = 163,613.70 × 108,384.60
  4. Step 4: Simplify right side
    109,075.80x = 17,733,205,429.02
  5. Step 5: Solve for x
    x = 17,733,205,429.02/109,075.80
  6. Step 6: Final answer
    x = 162,576.90

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1.5x scale

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.