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Finding the Fourth Proportional to 369,607.52, 554,419.92 and 120,308.96

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Solution

The fourth proportional to 369,607.52, 554,419.92 and 120,308.96 is: 180,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,607.52 : 554,419.92 = 120,308.96 : x
  2. Step 2: Convert to fraction form
    369,607.52/554,419.92 = 120,308.96/x
  3. Step 3: Cross multiply
    369,607.52x = 554,419.92 × 120,308.96
  4. Step 4: Simplify right side
    369,607.52x = 66,701,683,978.48
  5. Step 5: Solve for x
    x = 66,701,683,978.48/369,607.52
  6. Step 6: Final answer
    x = 180,466.25

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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.