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Finding the Fourth Proportional to 222,780.88, 307,453.88 and 127,285.53

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Solution

The fourth proportional to 222,780.88, 307,453.88 and 127,285.53 is: 175,663.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,780.88 : 307,453.88 = 127,285.53 : x
  2. Step 2: Convert to fraction form
    222,780.88/307,453.88 = 127,285.53/x
  3. Step 3: Cross multiply
    222,780.88x = 307,453.88 × 127,285.53
  4. Step 4: Simplify right side
    222,780.88x = 39,134,430,066.36
  5. Step 5: Solve for x
    x = 39,134,430,066.36/222,780.88
  6. Step 6: Final answer
    x = 175,663.32

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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.