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Finding the Fourth Proportional to 338,543.15, 507,822.01 and 161,068.10

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Solution

The fourth proportional to 338,543.15, 507,822.01 and 161,068.10 is: 241,605.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,543.15 : 507,822.01 = 161,068.10 : x
  2. Step 2: Convert to fraction form
    338,543.15/507,822.01 = 161,068.10/x
  3. Step 3: Cross multiply
    338,543.15x = 507,822.01 × 161,068.10
  4. Step 4: Simplify right side
    338,543.15x = 81,793,923,347.10
  5. Step 5: Solve for x
    x = 81,793,923,347.10/338,543.15
  6. Step 6: Final answer
    x = 241,605.61

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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.