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Finding the Fourth Proportional to 351,329.48, 526,995.47 and 85,090.17

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Solution

The fourth proportional to 351,329.48, 526,995.47 and 85,090.17 is: 127,635.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,329.48 : 526,995.47 = 85,090.17 : x
  2. Step 2: Convert to fraction form
    351,329.48/526,995.47 = 85,090.17/x
  3. Step 3: Cross multiply
    351,329.48x = 526,995.47 × 85,090.17
  4. Step 4: Simplify right side
    351,329.48x = 44,842,135,342.66
  5. Step 5: Solve for x
    x = 44,842,135,342.66/351,329.48
  6. Step 6: Final answer
    x = 127,635.56

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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.