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Finding the Fourth Proportional to 222,746.64, 307,404.36 and 122,144.64

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Solution

The fourth proportional to 222,746.64, 307,404.36 and 122,144.64 is: 168,567.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,746.64 : 307,404.36 = 122,144.64 : x
  2. Step 2: Convert to fraction form
    222,746.64/307,404.36 = 122,144.64/x
  3. Step 3: Cross multiply
    222,746.64x = 307,404.36 × 122,144.64
  4. Step 4: Simplify right side
    222,746.64x = 37,547,794,886.63
  5. Step 5: Solve for x
    x = 37,547,794,886.63/222,746.64
  6. Step 6: Final answer
    x = 168,567.28

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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.