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Finding the Fourth Proportional to 295,084.64, 442,652.16 and 126,612.32

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Solution

The fourth proportional to 295,084.64, 442,652.16 and 126,612.32 is: 189,929.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,084.64 : 442,652.16 = 126,612.32 : x
  2. Step 2: Convert to fraction form
    295,084.64/442,652.16 = 126,612.32/x
  3. Step 3: Cross multiply
    295,084.64x = 442,652.16 × 126,612.32
  4. Step 4: Simplify right side
    295,084.64x = 56,045,216,930.61
  5. Step 5: Solve for x
    x = 56,045,216,930.61/295,084.64
  6. Step 6: Final answer
    x = 189,929.29

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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.