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Finding the Fourth Proportional to 338,588.02, 507,902.72 and 113,929.59

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Solution

The fourth proportional to 338,588.02, 507,902.72 and 113,929.59 is: 170,901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,588.02 : 507,902.72 = 113,929.59 : x
  2. Step 2: Convert to fraction form
    338,588.02/507,902.72 = 113,929.59/x
  3. Step 3: Cross multiply
    338,588.02x = 507,902.72 × 113,929.59
  4. Step 4: Simplify right side
    338,588.02x = 57,865,148,649.48
  5. Step 5: Solve for x
    x = 57,865,148,649.48/338,588.02
  6. Step 6: Final answer
    x = 170,901.35

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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.