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Finding the Fourth Proportional to 370,708.52, 556,128.66 and 134,381.32

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Solution

The fourth proportional to 370,708.52, 556,128.66 and 134,381.32 is: 201,595.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,708.52 : 556,128.66 = 134,381.32 : x
  2. Step 2: Convert to fraction form
    370,708.52/556,128.66 = 134,381.32/x
  3. Step 3: Cross multiply
    370,708.52x = 556,128.66 × 134,381.32
  4. Step 4: Simplify right side
    370,708.52x = 74,733,303,420.63
  5. Step 5: Solve for x
    x = 74,733,303,420.63/370,708.52
  6. Step 6: Final answer
    x = 201,595.86

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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.