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Finding the Fourth Proportional to 162,981.60, 244,515.60 and 57,789.60

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Solution

The fourth proportional to 162,981.60, 244,515.60 and 57,789.60 is: 86,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,981.60 : 244,515.60 = 57,789.60 : x
  2. Step 2: Convert to fraction form
    162,981.60/244,515.60 = 57,789.60/x
  3. Step 3: Cross multiply
    162,981.60x = 244,515.60 × 57,789.60
  4. Step 4: Simplify right side
    162,981.60x = 14,130,458,717.76
  5. Step 5: Solve for x
    x = 14,130,458,717.76/162,981.60
  6. Step 6: Final answer
    x = 86,699.72

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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.