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Finding the Fourth Proportional to 364,556.55, 546,670.80 and 139,842.30

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Solution

The fourth proportional to 364,556.55, 546,670.80 and 139,842.30 is: 209,700.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,556.55 : 546,670.80 = 139,842.30 : x
  2. Step 2: Convert to fraction form
    364,556.55/546,670.80 = 139,842.30/x
  3. Step 3: Cross multiply
    364,556.55x = 546,670.80 × 139,842.30
  4. Step 4: Simplify right side
    364,556.55x = 76,447,702,014.84
  5. Step 5: Solve for x
    x = 76,447,702,014.84/364,556.55
  6. Step 6: Final answer
    x = 209,700.53

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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.