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Finding the Fourth Proportional to 368,005.64, 552,008.48 and 118,687.64

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Solution

The fourth proportional to 368,005.64, 552,008.48 and 118,687.64 is: 178,031.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,005.64 : 552,008.48 = 118,687.64 : x
  2. Step 2: Convert to fraction form
    368,005.64/552,008.48 = 118,687.64/x
  3. Step 3: Cross multiply
    368,005.64x = 552,008.48 × 118,687.64
  4. Step 4: Simplify right side
    368,005.64x = 65,516,583,751.19
  5. Step 5: Solve for x
    x = 65,516,583,751.19/368,005.64
  6. Step 6: Final answer
    x = 178,031.47

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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.