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Finding the Fourth Proportional to 207,087.65, 310,176.16 and 171,141.58

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Solution

The fourth proportional to 207,087.65, 310,176.16 and 171,141.58 is: 256,336.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,087.65 : 310,176.16 = 171,141.58 : x
  2. Step 2: Convert to fraction form
    207,087.65/310,176.16 = 171,141.58/x
  3. Step 3: Cross multiply
    207,087.65x = 310,176.16 × 171,141.58
  4. Step 4: Simplify right side
    207,087.65x = 53,084,036,897.44
  5. Step 5: Solve for x
    x = 53,084,036,897.44/207,087.65
  6. Step 6: Final answer
    x = 256,336.08

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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.