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Finding the Fourth Proportional to 310,918.60, 466,262.70 and 100,563.40

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Solution

The fourth proportional to 310,918.60, 466,262.70 and 100,563.40 is: 150,807.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,918.60 : 466,262.70 = 100,563.40 : x
  2. Step 2: Convert to fraction form
    310,918.60/466,262.70 = 100,563.40/x
  3. Step 3: Cross multiply
    310,918.60x = 466,262.70 × 100,563.40
  4. Step 4: Simplify right side
    310,918.60x = 46,888,962,405.18
  5. Step 5: Solve for x
    x = 46,888,962,405.18/310,918.60
  6. Step 6: Final answer
    x = 150,807.84

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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.