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Finding the Fourth Proportional to 424,937.12, 637,444.64 and 109,395.04

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Solution

The fourth proportional to 424,937.12, 637,444.64 and 109,395.04 is: 164,102.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,937.12 : 637,444.64 = 109,395.04 : x
  2. Step 2: Convert to fraction form
    424,937.12/637,444.64 = 109,395.04/x
  3. Step 3: Cross multiply
    424,937.12x = 637,444.64 × 109,395.04
  4. Step 4: Simplify right side
    424,937.12x = 69,733,281,890.59
  5. Step 5: Solve for x
    x = 69,733,281,890.59/424,937.12
  6. Step 6: Final answer
    x = 164,102.59

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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.