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Finding the Fourth Proportional to 370,709.52, 556,130.16 and 134,382.32

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Solution

The fourth proportional to 370,709.52, 556,130.16 and 134,382.32 is: 201,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,709.52 : 556,130.16 = 134,382.32 : x
  2. Step 2: Convert to fraction form
    370,709.52/556,130.16 = 134,382.32/x
  3. Step 3: Cross multiply
    370,709.52x = 556,130.16 × 134,382.32
  4. Step 4: Simplify right side
    370,709.52x = 74,734,061,122.77
  5. Step 5: Solve for x
    x = 74,734,061,122.77/370,709.52
  6. Step 6: Final answer
    x = 201,597.36

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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.