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Finding the Fourth Proportional to 155,597.40, 232,812.90 and 103,109.40

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Solution

The fourth proportional to 155,597.40, 232,812.90 and 103,109.40 is: 154,277.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,597.40 : 232,812.90 = 103,109.40 : x
  2. Step 2: Convert to fraction form
    155,597.40/232,812.90 = 103,109.40/x
  3. Step 3: Cross multiply
    155,597.40x = 232,812.90 × 103,109.40
  4. Step 4: Simplify right side
    155,597.40x = 24,005,198,431.26
  5. Step 5: Solve for x
    x = 24,005,198,431.26/155,597.40
  6. Step 6: Final answer
    x = 154,277.63

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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.