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Finding the Fourth Proportional to 127,833.60, 191,606.40 and 61,305.60

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Solution

The fourth proportional to 127,833.60, 191,606.40 and 61,305.60 is: 91,889.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,833.60 : 191,606.40 = 61,305.60 : x
  2. Step 2: Convert to fraction form
    127,833.60/191,606.40 = 61,305.60/x
  3. Step 3: Cross multiply
    127,833.60x = 191,606.40 × 61,305.60
  4. Step 4: Simplify right side
    127,833.60x = 11,746,545,315.84
  5. Step 5: Solve for x
    x = 11,746,545,315.84/127,833.60
  6. Step 6: Final answer
    x = 91,889.34

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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.