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Finding the Fourth Proportional to 127,555.61, 191,166.42 and 52,588.49

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Solution

The fourth proportional to 127,555.61, 191,166.42 and 52,588.49 is: 78,813.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,555.61 : 191,166.42 = 52,588.49 : x
  2. Step 2: Convert to fraction form
    127,555.61/191,166.42 = 52,588.49/x
  3. Step 3: Cross multiply
    127,555.61x = 191,166.42 × 52,588.49
  4. Step 4: Simplify right side
    127,555.61x = 10,053,153,366.51
  5. Step 5: Solve for x
    x = 10,053,153,366.51/127,555.61
  6. Step 6: Final answer
    x = 78,813.89

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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.