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Finding the Fourth Proportional to 155,604.24, 214,721.28 and 88,536.24

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Solution

The fourth proportional to 155,604.24, 214,721.28 and 88,536.24 is: 122,172.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,604.24 : 214,721.28 = 88,536.24 : x
  2. Step 2: Convert to fraction form
    155,604.24/214,721.28 = 88,536.24/x
  3. Step 3: Cross multiply
    155,604.24x = 214,721.28 × 88,536.24
  4. Step 4: Simplify right side
    155,604.24x = 19,010,614,779.19
  5. Step 5: Solve for x
    x = 19,010,614,779.19/155,604.24
  6. Step 6: Final answer
    x = 122,172.86

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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.