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Finding the Fourth Proportional to 127,844.60, 176,467.02 and 85,412.60

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Solution

The fourth proportional to 127,844.60, 176,467.02 and 85,412.60 is: 117,897.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,844.60 : 176,467.02 = 85,412.60 : x
  2. Step 2: Convert to fraction form
    127,844.60/176,467.02 = 85,412.60/x
  3. Step 3: Cross multiply
    127,844.60x = 176,467.02 × 85,412.60
  4. Step 4: Simplify right side
    127,844.60x = 15,072,506,992.45
  5. Step 5: Solve for x
    x = 15,072,506,992.45/127,844.60
  6. Step 6: Final answer
    x = 117,897.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.