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Finding the Fourth Proportional to 130,998.96, 180,635.54 and 88,483.68

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Solution

The fourth proportional to 130,998.96, 180,635.54 and 88,483.68 is: 122,010.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,998.96 : 180,635.54 = 88,483.68 : x
  2. Step 2: Convert to fraction form
    130,998.96/180,635.54 = 88,483.68/x
  3. Step 3: Cross multiply
    130,998.96x = 180,635.54 × 88,483.68
  4. Step 4: Simplify right side
    130,998.96x = 15,983,296,875.57
  5. Step 5: Solve for x
    x = 15,983,296,875.57/130,998.96
  6. Step 6: Final answer
    x = 122,010.87

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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.