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Finding the Fourth Proportional to 170,671.76, 235,526.64 and 99,093.68

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Solution

The fourth proportional to 170,671.76, 235,526.64 and 99,093.68 is: 136,749.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,671.76 : 235,526.64 = 99,093.68 : x
  2. Step 2: Convert to fraction form
    170,671.76/235,526.64 = 99,093.68/x
  3. Step 3: Cross multiply
    170,671.76x = 235,526.64 × 99,093.68
  4. Step 4: Simplify right side
    170,671.76x = 23,339,201,495.64
  5. Step 5: Solve for x
    x = 23,339,201,495.64/170,671.76
  6. Step 6: Final answer
    x = 136,749.05

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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.