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Finding the Fourth Proportional to 368,068.32, 552,102.63 and 115,368.51

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Solution

The fourth proportional to 368,068.32, 552,102.63 and 115,368.51 is: 173,052.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,068.32 : 552,102.63 = 115,368.51 : x
  2. Step 2: Convert to fraction form
    368,068.32/552,102.63 = 115,368.51/x
  3. Step 3: Cross multiply
    368,068.32x = 552,102.63 × 115,368.51
  4. Step 4: Simplify right side
    368,068.32x = 63,695,257,790.18
  5. Step 5: Solve for x
    x = 63,695,257,790.18/368,068.32
  6. Step 6: Final answer
    x = 173,052.81

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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.