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Finding the Fourth Proportional to 410,639.09, 615,851.69 and 173,859.89

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Solution

The fourth proportional to 410,639.09, 615,851.69 and 173,859.89 is: 260,744.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,639.09 : 615,851.69 = 173,859.89 : x
  2. Step 2: Convert to fraction form
    410,639.09/615,851.69 = 173,859.89/x
  3. Step 3: Cross multiply
    410,639.09x = 615,851.69 × 173,859.89
  4. Step 4: Simplify right side
    410,639.09x = 107,071,903,131.16
  5. Step 5: Solve for x
    x = 107,071,903,131.16/410,639.09
  6. Step 6: Final answer
    x = 260,744.55

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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.