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Finding the Fourth Proportional to 310,908.06, 466,374.15 and 97,821.30

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Solution

The fourth proportional to 310,908.06, 466,374.15 and 97,821.30 is: 146,735.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,908.06 : 466,374.15 = 97,821.30 : x
  2. Step 2: Convert to fraction form
    310,908.06/466,374.15 = 97,821.30/x
  3. Step 3: Cross multiply
    310,908.06x = 466,374.15 × 97,821.30
  4. Step 4: Simplify right side
    310,908.06x = 45,621,325,639.40
  5. Step 5: Solve for x
    x = 45,621,325,639.40/310,908.06
  6. Step 6: Final answer
    x = 146,735.74

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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.