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Finding the Fourth Proportional to 369,658.48, 554,522.64 and 103,419.04

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Solution

The fourth proportional to 369,658.48, 554,522.64 and 103,419.04 is: 155,138.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,658.48 : 554,522.64 = 103,419.04 : x
  2. Step 2: Convert to fraction form
    369,658.48/554,522.64 = 103,419.04/x
  3. Step 3: Cross multiply
    369,658.48x = 554,522.64 × 103,419.04
  4. Step 4: Simplify right side
    369,658.48x = 57,348,199,087.07
  5. Step 5: Solve for x
    x = 57,348,199,087.07/369,658.48
  6. Step 6: Final answer
    x = 155,138.33

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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.