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Finding the Fourth Proportional to 77,881.60, 116,595.60 and 58,247.20

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Solution

The fourth proportional to 77,881.60, 116,595.60 and 58,247.20 is: 87,201.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,881.60 : 116,595.60 = 58,247.20 : x
  2. Step 2: Convert to fraction form
    77,881.60/116,595.60 = 58,247.20/x
  3. Step 3: Cross multiply
    77,881.60x = 116,595.60 × 58,247.20
  4. Step 4: Simplify right side
    77,881.60x = 6,791,367,232.32
  5. Step 5: Solve for x
    x = 6,791,367,232.32/77,881.60
  6. Step 6: Final answer
    x = 87,201.18

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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.