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Finding the Fourth Proportional to 338,271.55, 507,465.95 and 113,653.89

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Solution

The fourth proportional to 338,271.55, 507,465.95 and 113,653.89 is: 170,500.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,271.55 : 507,465.95 = 113,653.89 : x
  2. Step 2: Convert to fraction form
    338,271.55/507,465.95 = 113,653.89/x
  3. Step 3: Cross multiply
    338,271.55x = 507,465.95 × 113,653.89
  4. Step 4: Simplify right side
    338,271.55x = 57,675,479,610.24
  5. Step 5: Solve for x
    x = 57,675,479,610.24/338,271.55
  6. Step 6: Final answer
    x = 170,500.53

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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.