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Finding the Fourth Proportional to 164,028.80, 245,888.40 and 89,038.40

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Solution

The fourth proportional to 164,028.80, 245,888.40 and 89,038.40 is: 133,473.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,028.80 : 245,888.40 = 89,038.40 : x
  2. Step 2: Convert to fraction form
    164,028.80/245,888.40 = 89,038.40/x
  3. Step 3: Cross multiply
    164,028.80x = 245,888.40 × 89,038.40
  4. Step 4: Simplify right side
    164,028.80x = 21,893,509,714.56
  5. Step 5: Solve for x
    x = 21,893,509,714.56/164,028.80
  6. Step 6: Final answer
    x = 133,473.57

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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.