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Finding the Fourth Proportional to 292,987.50, 404,311.52 and 165,665.76

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Solution

The fourth proportional to 292,987.50, 404,311.52 and 165,665.76 is: 228,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,987.50 : 404,311.52 = 165,665.76 : x
  2. Step 2: Convert to fraction form
    292,987.50/404,311.52 = 165,665.76/x
  3. Step 3: Cross multiply
    292,987.50x = 404,311.52 × 165,665.76
  4. Step 4: Simplify right side
    292,987.50x = 66,980,575,237.56
  5. Step 5: Solve for x
    x = 66,980,575,237.56/292,987.50
  6. Step 6: Final answer
    x = 228,612.40

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1.5x scale

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.