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Finding the Fourth Proportional to 525,039.60, 787,684.86 and 170,054.04

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Solution

The fourth proportional to 525,039.60, 787,684.86 and 170,054.04 is: 255,121.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,039.60 : 787,684.86 = 170,054.04 : x
  2. Step 2: Convert to fraction form
    525,039.60/787,684.86 = 170,054.04/x
  3. Step 3: Cross multiply
    525,039.60x = 787,684.86 × 170,054.04
  4. Step 4: Simplify right side
    525,039.60x = 133,948,992,689.83
  5. Step 5: Solve for x
    x = 133,948,992,689.83/525,039.60
  6. Step 6: Final answer
    x = 255,121.69

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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.