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Finding the Fourth Proportional to 178,423, 246,223.74 and 98,935

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Solution

The fourth proportional to 178,423, 246,223.74 and 98,935 is: 136,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,423 : 246,223.74 = 98,935 : x
  2. Step 2: Convert to fraction form
    178,423/246,223.74 = 98,935/x
  3. Step 3: Cross multiply
    178,423x = 246,223.74 × 98,935
  4. Step 4: Simplify right side
    178,423x = 24,360,145,716.90
  5. Step 5: Solve for x
    x = 24,360,145,716.90/178,423
  6. Step 6: Final answer
    x = 136,530.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.