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Finding the Fourth Proportional to 171,622.80, 257,482.80 and 53,306.10

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Solution

The fourth proportional to 171,622.80, 257,482.80 and 53,306.10 is: 79,974.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,622.80 : 257,482.80 = 53,306.10 : x
  2. Step 2: Convert to fraction form
    171,622.80/257,482.80 = 53,306.10/x
  3. Step 3: Cross multiply
    171,622.80x = 257,482.80 × 53,306.10
  4. Step 4: Simplify right side
    171,622.80x = 13,725,403,885.08
  5. Step 5: Solve for x
    x = 13,725,403,885.08/171,622.80
  6. Step 6: Final answer
    x = 79,974.25

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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.