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Finding the Fourth Proportional to 149,720.40, 224,580.60 and 134,686.80

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Solution

The fourth proportional to 149,720.40, 224,580.60 and 134,686.80 is: 202,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,720.40 : 224,580.60 = 134,686.80 : x
  2. Step 2: Convert to fraction form
    149,720.40/224,580.60 = 134,686.80/x
  3. Step 3: Cross multiply
    149,720.40x = 224,580.60 × 134,686.80
  4. Step 4: Simplify right side
    149,720.40x = 30,248,042,356.08
  5. Step 5: Solve for x
    x = 30,248,042,356.08/149,720.40
  6. Step 6: Final answer
    x = 202,030.20

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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.