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Finding the Fourth Proportional to 117,394.80, 176,027.40 and 38,468.40

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Solution

The fourth proportional to 117,394.80, 176,027.40 and 38,468.40 is: 57,681.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,394.80 : 176,027.40 = 38,468.40 : x
  2. Step 2: Convert to fraction form
    117,394.80/176,027.40 = 38,468.40/x
  3. Step 3: Cross multiply
    117,394.80x = 176,027.40 × 38,468.40
  4. Step 4: Simplify right side
    117,394.80x = 6,771,492,434.16
  5. Step 5: Solve for x
    x = 6,771,492,434.16/117,394.80
  6. Step 6: Final answer
    x = 57,681.37

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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.