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Finding the Fourth Proportional to 171,950.40, 257,551.65 and 105,188.58

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Solution

The fourth proportional to 171,950.40, 257,551.65 and 105,188.58 is: 157,554.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,950.40 : 257,551.65 = 105,188.58 : x
  2. Step 2: Convert to fraction form
    171,950.40/257,551.65 = 105,188.58/x
  3. Step 3: Cross multiply
    171,950.40x = 257,551.65 × 105,188.58
  4. Step 4: Simplify right side
    171,950.40x = 27,091,492,340.16
  5. Step 5: Solve for x
    x = 27,091,492,340.16/171,950.40
  6. Step 6: Final answer
    x = 157,554.11

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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.