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Finding the Fourth Proportional to 318,881.00, 440,055.72 and 175,641.03

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Solution

The fourth proportional to 318,881.00, 440,055.72 and 175,641.03 is: 242,384.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,881.00 : 440,055.72 = 175,641.03 : x
  2. Step 2: Convert to fraction form
    318,881.00/440,055.72 = 175,641.03/x
  3. Step 3: Cross multiply
    318,881.00x = 440,055.72 × 175,641.03
  4. Step 4: Simplify right side
    318,881.00x = 77,291,839,918.19
  5. Step 5: Solve for x
    x = 77,291,839,918.19/318,881.00
  6. Step 6: Final answer
    x = 242,384.59

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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.