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Finding the Fourth Proportional to 223,453.08, 308,349.18 and 127,957.32

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Solution

The fourth proportional to 223,453.08, 308,349.18 and 127,957.32 is: 176,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,453.08 : 308,349.18 = 127,957.32 : x
  2. Step 2: Convert to fraction form
    223,453.08/308,349.18 = 127,957.32/x
  3. Step 3: Cross multiply
    223,453.08x = 308,349.18 × 127,957.32
  4. Step 4: Simplify right side
    223,453.08x = 39,455,534,697.00
  5. Step 5: Solve for x
    x = 39,455,534,697.00/223,453.08
  6. Step 6: Final answer
    x = 176,571.90

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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.