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Finding the Fourth Proportional to 169,435.09, 254,065.84 and 89,515.96

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Solution

The fourth proportional to 169,435.09, 254,065.84 and 89,515.96 is: 134,228.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,435.09 : 254,065.84 = 89,515.96 : x
  2. Step 2: Convert to fraction form
    169,435.09/254,065.84 = 89,515.96/x
  3. Step 3: Cross multiply
    169,435.09x = 254,065.84 × 89,515.96
  4. Step 4: Simplify right side
    169,435.09x = 22,742,947,678.18
  5. Step 5: Solve for x
    x = 22,742,947,678.18/169,435.09
  6. Step 6: Final answer
    x = 134,228.08

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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.