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Finding the Fourth Proportional to 183,503.80, 253,077.78 and 118,914.40

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Solution

The fourth proportional to 183,503.80, 253,077.78 and 118,914.40 is: 163,999.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,503.80 : 253,077.78 = 118,914.40 : x
  2. Step 2: Convert to fraction form
    183,503.80/253,077.78 = 118,914.40/x
  3. Step 3: Cross multiply
    183,503.80x = 253,077.78 × 118,914.40
  4. Step 4: Simplify right side
    183,503.80x = 30,094,592,362.03
  5. Step 5: Solve for x
    x = 30,094,592,362.03/183,503.80
  6. Step 6: Final answer
    x = 163,999.83

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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.