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Finding the Fourth Proportional to 371,442.39, 557,384.93 and 134,803.52

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Solution

The fourth proportional to 371,442.39, 557,384.93 and 134,803.52 is: 202,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,442.39 : 557,384.93 = 134,803.52 : x
  2. Step 2: Convert to fraction form
    371,442.39/557,384.93 = 134,803.52/x
  3. Step 3: Cross multiply
    371,442.39x = 557,384.93 × 134,803.52
  4. Step 4: Simplify right side
    371,442.39x = 75,137,447,098.01
  5. Step 5: Solve for x
    x = 75,137,447,098.01/371,442.39
  6. Step 6: Final answer
    x = 202,285.60

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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.