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Finding the Fourth Proportional to 231,048.60, 346,572.90 and 73,289.40

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Solution

The fourth proportional to 231,048.60, 346,572.90 and 73,289.40 is: 109,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,048.60 : 346,572.90 = 73,289.40 : x
  2. Step 2: Convert to fraction form
    231,048.60/346,572.90 = 73,289.40/x
  3. Step 3: Cross multiply
    231,048.60x = 346,572.90 × 73,289.40
  4. Step 4: Simplify right side
    231,048.60x = 25,400,119,897.26
  5. Step 5: Solve for x
    x = 25,400,119,897.26/231,048.60
  6. Step 6: Final answer
    x = 109,934.10

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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.