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Finding the Fourth Proportional to 383,528.16, 575,551.44 and 134,212.32

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Solution

The fourth proportional to 383,528.16, 575,551.44 and 134,212.32 is: 201,409.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,528.16 : 575,551.44 = 134,212.32 : x
  2. Step 2: Convert to fraction form
    383,528.16/575,551.44 = 134,212.32/x
  3. Step 3: Cross multiply
    383,528.16x = 575,551.44 × 134,212.32
  4. Step 4: Simplify right side
    383,528.16x = 77,246,094,041.74
  5. Step 5: Solve for x
    x = 77,246,094,041.74/383,528.16
  6. Step 6: Final answer
    x = 201,409.18

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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.