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Finding the Fourth Proportional to 371,309.40, 556,963.56 and 134,651.52

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Solution

The fourth proportional to 371,309.40, 556,963.56 and 134,651.52 is: 201,977.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,309.40 : 556,963.56 = 134,651.52 : x
  2. Step 2: Convert to fraction form
    371,309.40/556,963.56 = 134,651.52/x
  3. Step 3: Cross multiply
    371,309.40x = 556,963.56 × 134,651.52
  4. Step 4: Simplify right side
    371,309.40x = 74,995,989,938.61
  5. Step 5: Solve for x
    x = 74,995,989,938.61/371,309.40
  6. Step 6: Final answer
    x = 201,977.08

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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.