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Finding the Fourth Proportional to 338,326.32, 507,497.58 and 113,689.92

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Solution

The fourth proportional to 338,326.32, 507,497.58 and 113,689.92 is: 170,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,326.32 : 507,497.58 = 113,689.92 : x
  2. Step 2: Convert to fraction form
    338,326.32/507,497.58 = 113,689.92/x
  3. Step 3: Cross multiply
    338,326.32x = 507,497.58 × 113,689.92
  4. Step 4: Simplify right side
    338,326.32x = 57,697,359,270.39
  5. Step 5: Solve for x
    x = 57,697,359,270.39/338,326.32
  6. Step 6: Final answer
    x = 170,537.60

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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.