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Finding the Fourth Proportional to 49,409.80, 74,114.70 and 34,376.20

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Solution

The fourth proportional to 49,409.80, 74,114.70 and 34,376.20 is: 51,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,409.80 : 74,114.70 = 34,376.20 : x
  2. Step 2: Convert to fraction form
    49,409.80/74,114.70 = 34,376.20/x
  3. Step 3: Cross multiply
    49,409.80x = 74,114.70 × 34,376.20
  4. Step 4: Simplify right side
    49,409.80x = 2,547,781,750.14
  5. Step 5: Solve for x
    x = 2,547,781,750.14/49,409.80
  6. Step 6: Final answer
    x = 51,564.30

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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.