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Finding the Fourth Proportional to 308,836.60, 463,254.90 and 109,155.40

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Solution

The fourth proportional to 308,836.60, 463,254.90 and 109,155.40 is: 163,733.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,836.60 : 463,254.90 = 109,155.40 : x
  2. Step 2: Convert to fraction form
    308,836.60/463,254.90 = 109,155.40/x
  3. Step 3: Cross multiply
    308,836.60x = 463,254.90 × 109,155.40
  4. Step 4: Simplify right side
    308,836.60x = 50,566,773,911.46
  5. Step 5: Solve for x
    x = 50,566,773,911.46/308,836.60
  6. Step 6: Final answer
    x = 163,733.10

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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.