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Finding the Fourth Proportional to 252,711.60, 348,741.84 and 139,534.32

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Solution

The fourth proportional to 252,711.60, 348,741.84 and 139,534.32 is: 192,557.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,711.60 : 348,741.84 = 139,534.32 : x
  2. Step 2: Convert to fraction form
    252,711.60/348,741.84 = 139,534.32/x
  3. Step 3: Cross multiply
    252,711.60x = 348,741.84 × 139,534.32
  4. Step 4: Simplify right side
    252,711.60x = 48,661,455,499.95
  5. Step 5: Solve for x
    x = 48,661,455,499.95/252,711.60
  6. Step 6: Final answer
    x = 192,557.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.