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Finding the Fourth Proportional to 210,059.37, 314,968.10 and 91,674.09

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Solution

The fourth proportional to 210,059.37, 314,968.10 and 91,674.09 is: 137,458.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,059.37 : 314,968.10 = 91,674.09 : x
  2. Step 2: Convert to fraction form
    210,059.37/314,968.10 = 91,674.09/x
  3. Step 3: Cross multiply
    210,059.37x = 314,968.10 × 91,674.09
  4. Step 4: Simplify right side
    210,059.37x = 28,874,413,488.16
  5. Step 5: Solve for x
    x = 28,874,413,488.16/210,059.37
  6. Step 6: Final answer
    x = 137,458.35

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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.