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Finding the Fourth Proportional to 416,990.48, 625,445.64 and 117,466.28

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Solution

The fourth proportional to 416,990.48, 625,445.64 and 117,466.28 is: 176,188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,990.48 : 625,445.64 = 117,466.28 : x
  2. Step 2: Convert to fraction form
    416,990.48/625,445.64 = 117,466.28/x
  3. Step 3: Cross multiply
    416,990.48x = 625,445.64 × 117,466.28
  4. Step 4: Simplify right side
    416,990.48x = 73,468,772,673.02
  5. Step 5: Solve for x
    x = 73,468,772,673.02/416,990.48
  6. Step 6: Final answer
    x = 176,188.13

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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.