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Finding the Fourth Proportional to 109,875.40, 164,813.10 and 26,769.40

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Solution

The fourth proportional to 109,875.40, 164,813.10 and 26,769.40 is: 40,154.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,875.40 : 164,813.10 = 26,769.40 : x
  2. Step 2: Convert to fraction form
    109,875.40/164,813.10 = 26,769.40/x
  3. Step 3: Cross multiply
    109,875.40x = 164,813.10 × 26,769.40
  4. Step 4: Simplify right side
    109,875.40x = 4,411,947,799.14
  5. Step 5: Solve for x
    x = 4,411,947,799.14/109,875.40
  6. Step 6: Final answer
    x = 40,154.10

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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.