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Finding the Fourth Proportional to 134,506.40, 201,743.40 and 55,612.40

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Solution

The fourth proportional to 134,506.40, 201,743.40 and 55,612.40 is: 83,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,506.40 : 201,743.40 = 55,612.40 : x
  2. Step 2: Convert to fraction form
    134,506.40/201,743.40 = 55,612.40/x
  3. Step 3: Cross multiply
    134,506.40x = 201,743.40 × 55,612.40
  4. Step 4: Simplify right side
    134,506.40x = 11,219,434,658.16
  5. Step 5: Solve for x
    x = 11,219,434,658.16/134,506.40
  6. Step 6: Final answer
    x = 83,411.90

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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.