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Finding the Fourth Proportional to 292,628.93, 403,860.69 and 165,312.72

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Solution

The fourth proportional to 292,628.93, 403,860.69 and 165,312.72 is: 228,150.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,628.93 : 403,860.69 = 165,312.72 : x
  2. Step 2: Convert to fraction form
    292,628.93/403,860.69 = 165,312.72/x
  3. Step 3: Cross multiply
    292,628.93x = 403,860.69 × 165,312.72
  4. Step 4: Simplify right side
    292,628.93x = 66,763,309,164.98
  5. Step 5: Solve for x
    x = 66,763,309,164.98/292,628.93
  6. Step 6: Final answer
    x = 228,150.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.