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Finding the Fourth Proportional to 235,157.64, 324,518.48 and 127,729.47

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Solution

The fourth proportional to 235,157.64, 324,518.48 and 127,729.47 is: 176,267.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,157.64 : 324,518.48 = 127,729.47 : x
  2. Step 2: Convert to fraction form
    235,157.64/324,518.48 = 127,729.47/x
  3. Step 3: Cross multiply
    235,157.64x = 324,518.48 × 127,729.47
  4. Step 4: Simplify right side
    235,157.64x = 41,450,572,816.96
  5. Step 5: Solve for x
    x = 41,450,572,816.96/235,157.64
  6. Step 6: Final answer
    x = 176,267.17

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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.