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Finding the Fourth Proportional to 368,053.66, 552,080.62 and 115,353.76

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Solution

The fourth proportional to 368,053.66, 552,080.62 and 115,353.76 is: 173,030.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,053.66 : 552,080.62 = 115,353.76 : x
  2. Step 2: Convert to fraction form
    368,053.66/552,080.62 = 115,353.76/x
  3. Step 3: Cross multiply
    368,053.66x = 552,080.62 × 115,353.76
  4. Step 4: Simplify right side
    368,053.66x = 63,684,575,463.71
  5. Step 5: Solve for x
    x = 63,684,575,463.71/368,053.66
  6. Step 6: Final answer
    x = 173,030.68

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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.