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Finding the Fourth Proportional to 153,493.32, 211,764.60 and 93,020.34

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Solution

The fourth proportional to 153,493.32, 211,764.60 and 93,020.34 is: 128,334.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,493.32 : 211,764.60 = 93,020.34 : x
  2. Step 2: Convert to fraction form
    153,493.32/211,764.60 = 93,020.34/x
  3. Step 3: Cross multiply
    153,493.32x = 211,764.60 × 93,020.34
  4. Step 4: Simplify right side
    153,493.32x = 19,698,415,091.96
  5. Step 5: Solve for x
    x = 19,698,415,091.96/153,493.32
  6. Step 6: Final answer
    x = 128,334.02

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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.