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Finding the Fourth Proportional to 164,669.20, 247,068.60 and 64,812.40

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Solution

The fourth proportional to 164,669.20, 247,068.60 and 64,812.40 is: 97,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,669.20 : 247,068.60 = 64,812.40 : x
  2. Step 2: Convert to fraction form
    164,669.20/247,068.60 = 64,812.40/x
  3. Step 3: Cross multiply
    164,669.20x = 247,068.60 × 64,812.40
  4. Step 4: Simplify right side
    164,669.20x = 16,013,108,930.64
  5. Step 5: Solve for x
    x = 16,013,108,930.64/164,669.20
  6. Step 6: Final answer
    x = 97,244.10

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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.