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Finding the Fourth Proportional to 318,597.40, 439,661.04 and 175,354.36

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Solution

The fourth proportional to 318,597.40, 439,661.04 and 175,354.36 is: 241,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,597.40 : 439,661.04 = 175,354.36 : x
  2. Step 2: Convert to fraction form
    318,597.40/439,661.04 = 175,354.36/x
  3. Step 3: Cross multiply
    318,597.40x = 439,661.04 × 175,354.36
  4. Step 4: Simplify right side
    318,597.40x = 77,096,480,286.13
  5. Step 5: Solve for x
    x = 77,096,480,286.13/318,597.40
  6. Step 6: Final answer
    x = 241,987.16

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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.