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Finding the Fourth Proportional to 171,907.16, 257,873.16 and 71,966.84

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Solution

The fourth proportional to 171,907.16, 257,873.16 and 71,966.84 is: 107,955.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,907.16 : 257,873.16 = 71,966.84 : x
  2. Step 2: Convert to fraction form
    171,907.16/257,873.16 = 71,966.84/x
  3. Step 3: Cross multiply
    171,907.16x = 257,873.16 × 71,966.84
  4. Step 4: Simplify right side
    171,907.16x = 18,558,316,446.01
  5. Step 5: Solve for x
    x = 18,558,316,446.01/171,907.16
  6. Step 6: Final answer
    x = 107,955.46

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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.