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Finding the Fourth Proportional to 223,294.54, 308,128.59 and 127,779.34

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Solution

The fourth proportional to 223,294.54, 308,128.59 and 127,779.34 is: 176,325.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,294.54 : 308,128.59 = 127,779.34 : x
  2. Step 2: Convert to fraction form
    223,294.54/308,128.59 = 127,779.34/x
  3. Step 3: Cross multiply
    223,294.54x = 308,128.59 × 127,779.34
  4. Step 4: Simplify right side
    223,294.54x = 39,372,467,865.33
  5. Step 5: Solve for x
    x = 39,372,467,865.33/223,294.54
  6. Step 6: Final answer
    x = 176,325.26

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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.