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Finding the Fourth Proportional to 136,562.40, 188,349.26 and 88,830.98

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Solution

The fourth proportional to 136,562.40, 188,349.26 and 88,830.98 is: 122,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,562.40 : 188,349.26 = 88,830.98 : x
  2. Step 2: Convert to fraction form
    136,562.40/188,349.26 = 88,830.98/x
  3. Step 3: Cross multiply
    136,562.40x = 188,349.26 × 88,830.98
  4. Step 4: Simplify right side
    136,562.40x = 16,731,249,348.07
  5. Step 5: Solve for x
    x = 16,731,249,348.07/136,562.40
  6. Step 6: Final answer
    x = 122,517.25

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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.