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Finding the Fourth Proportional to 368,569.60, 552,854.40 and 119,276.80

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Solution

The fourth proportional to 368,569.60, 552,854.40 and 119,276.80 is: 178,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,569.60 : 552,854.40 = 119,276.80 : x
  2. Step 2: Convert to fraction form
    368,569.60/552,854.40 = 119,276.80/x
  3. Step 3: Cross multiply
    368,569.60x = 552,854.40 × 119,276.80
  4. Step 4: Simplify right side
    368,569.60x = 65,942,703,697.92
  5. Step 5: Solve for x
    x = 65,942,703,697.92/368,569.60
  6. Step 6: Final answer
    x = 178,915.20

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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.