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Finding the Fourth Proportional to 338,042.64, 507,030.88 and 88,724.64

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Solution

The fourth proportional to 338,042.64, 507,030.88 and 88,724.64 is: 133,078.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,042.64 : 507,030.88 = 88,724.64 : x
  2. Step 2: Convert to fraction form
    338,042.64/507,030.88 = 88,724.64/x
  3. Step 3: Cross multiply
    338,042.64x = 507,030.88 × 88,724.64
  4. Step 4: Simplify right side
    338,042.64x = 44,986,132,296.88
  5. Step 5: Solve for x
    x = 44,986,132,296.88/338,042.64
  6. Step 6: Final answer
    x = 133,078.28

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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.