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Finding the Fourth Proportional to 210,090.64, 315,135.80 and 62,346.64

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Solution

The fourth proportional to 210,090.64, 315,135.80 and 62,346.64 is: 93,519.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,090.64 : 315,135.80 = 62,346.64 : x
  2. Step 2: Convert to fraction form
    210,090.64/315,135.80 = 62,346.64/x
  3. Step 3: Cross multiply
    210,090.64x = 315,135.80 × 62,346.64
  4. Step 4: Simplify right side
    210,090.64x = 19,647,658,273.71
  5. Step 5: Solve for x
    x = 19,647,658,273.71/210,090.64
  6. Step 6: Final answer
    x = 93,519.91

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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.