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Finding the Fourth Proportional to 127,416.60, 175,859.28 and 84,396.60

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Solution

The fourth proportional to 127,416.60, 175,859.28 and 84,396.60 is: 116,483.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,416.60 : 175,859.28 = 84,396.60 : x
  2. Step 2: Convert to fraction form
    127,416.60/175,859.28 = 84,396.60/x
  3. Step 3: Cross multiply
    127,416.60x = 175,859.28 × 84,396.60
  4. Step 4: Simplify right side
    127,416.60x = 14,841,925,310.45
  5. Step 5: Solve for x
    x = 14,841,925,310.45/127,416.60
  6. Step 6: Final answer
    x = 116,483.45

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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.