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Finding the Fourth Proportional to 476,186.36, 714,301.40 and 121,203.45

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Solution

The fourth proportional to 476,186.36, 714,301.40 and 121,203.45 is: 181,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,186.36 : 714,301.40 = 121,203.45 : x
  2. Step 2: Convert to fraction form
    476,186.36/714,301.40 = 121,203.45/x
  3. Step 3: Cross multiply
    476,186.36x = 714,301.40 × 121,203.45
  4. Step 4: Simplify right side
    476,186.36x = 86,575,794,322.84
  5. Step 5: Solve for x
    x = 86,575,794,322.84/476,186.36
  6. Step 6: Final answer
    x = 181,810.74

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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.