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Finding the Fourth Proportional to 170,427, 255,591.54 and 52,070.52

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Solution

The fourth proportional to 170,427, 255,591.54 and 52,070.52 is: 78,090.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,427 : 255,591.54 = 52,070.52 : x
  2. Step 2: Convert to fraction form
    170,427/255,591.54 = 52,070.52/x
  3. Step 3: Cross multiply
    170,427x = 255,591.54 × 52,070.52
  4. Step 4: Simplify right side
    170,427x = 13,308,784,395.40
  5. Step 5: Solve for x
    x = 13,308,784,395.40/170,427
  6. Step 6: Final answer
    x = 78,090.82

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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.