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Finding the Fourth Proportional to 103,478.60, 155,254.35 and 50,852.90

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Solution

The fourth proportional to 103,478.60, 155,254.35 and 50,852.90 is: 76,297.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,478.60 : 155,254.35 = 50,852.90 : x
  2. Step 2: Convert to fraction form
    103,478.60/155,254.35 = 50,852.90/x
  3. Step 3: Cross multiply
    103,478.60x = 155,254.35 × 50,852.90
  4. Step 4: Simplify right side
    103,478.60x = 7,895,133,935.12
  5. Step 5: Solve for x
    x = 7,895,133,935.12/103,478.60
  6. Step 6: Final answer
    x = 76,297.26

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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.