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Finding the Fourth Proportional to 222,488.51, 307,056.15 and 127,009.58

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Solution

The fourth proportional to 222,488.51, 307,056.15 and 127,009.58 is: 175,285.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,488.51 : 307,056.15 = 127,009.58 : x
  2. Step 2: Convert to fraction form
    222,488.51/307,056.15 = 127,009.58/x
  3. Step 3: Cross multiply
    222,488.51x = 307,056.15 × 127,009.58
  4. Step 4: Simplify right side
    222,488.51x = 38,999,071,112.64
  5. Step 5: Solve for x
    x = 38,999,071,112.64/222,488.51
  6. Step 6: Final answer
    x = 175,285.78

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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.