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Finding the Fourth Proportional to 102,940.90, 154,411.35 and 96,028.90

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Solution

The fourth proportional to 102,940.90, 154,411.35 and 96,028.90 is: 144,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,940.90 : 154,411.35 = 96,028.90 : x
  2. Step 2: Convert to fraction form
    102,940.90/154,411.35 = 96,028.90/x
  3. Step 3: Cross multiply
    102,940.90x = 154,411.35 × 96,028.90
  4. Step 4: Simplify right side
    102,940.90x = 14,827,952,088.02
  5. Step 5: Solve for x
    x = 14,827,952,088.02/102,940.90
  6. Step 6: Final answer
    x = 144,043.35

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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.