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Finding the Fourth Proportional to 476,089.44, 714,130.92 and 121,100.28

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Solution

The fourth proportional to 476,089.44, 714,130.92 and 121,100.28 is: 181,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,089.44 : 714,130.92 = 121,100.28 : x
  2. Step 2: Convert to fraction form
    476,089.44/714,130.92 = 121,100.28/x
  3. Step 3: Cross multiply
    476,089.44x = 714,130.92 × 121,100.28
  4. Step 4: Simplify right side
    476,089.44x = 86,481,454,368.66
  5. Step 5: Solve for x
    x = 86,481,454,368.66/476,089.44
  6. Step 6: Final answer
    x = 181,649.60

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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.