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Finding the Fourth Proportional to 334,655.89, 501,989.91 and 121,575.13

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Solution

The fourth proportional to 334,655.89, 501,989.91 and 121,575.13 is: 182,364.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,655.89 : 501,989.91 = 121,575.13 : x
  2. Step 2: Convert to fraction form
    334,655.89/501,989.91 = 121,575.13/x
  3. Step 3: Cross multiply
    334,655.89x = 501,989.91 × 121,575.13
  4. Step 4: Simplify right side
    334,655.89x = 61,029,488,566.94
  5. Step 5: Solve for x
    x = 61,029,488,566.94/334,655.89
  6. Step 6: Final answer
    x = 182,364.90

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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.