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Finding the Fourth Proportional to 236,428.80, 354,580.80 and 118,012.80

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Solution

The fourth proportional to 236,428.80, 354,580.80 and 118,012.80 is: 176,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,428.80 : 354,580.80 = 118,012.80 : x
  2. Step 2: Convert to fraction form
    236,428.80/354,580.80 = 118,012.80/x
  3. Step 3: Cross multiply
    236,428.80x = 354,580.80 × 118,012.80
  4. Step 4: Simplify right side
    236,428.80x = 41,845,073,034.24
  5. Step 5: Solve for x
    x = 41,845,073,034.24/236,428.80
  6. Step 6: Final answer
    x = 176,988.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.