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Finding the Fourth Proportional to 318,595.60, 439,662.24 and 175,355.68

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Solution

The fourth proportional to 318,595.60, 439,662.24 and 175,355.68 is: 241,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,595.60 : 439,662.24 = 175,355.68 : x
  2. Step 2: Convert to fraction form
    318,595.60/439,662.24 = 175,355.68/x
  3. Step 3: Cross multiply
    318,595.60x = 439,662.24 × 175,355.68
  4. Step 4: Simplify right side
    318,595.60x = 77,097,271,065.52
  5. Step 5: Solve for x
    x = 77,097,271,065.52/318,595.60
  6. Step 6: Final answer
    x = 241,991.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.