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Finding the Fourth Proportional to 134,485.60, 201,728.40 and 92,495.20

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Solution

The fourth proportional to 134,485.60, 201,728.40 and 92,495.20 is: 138,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,485.60 : 201,728.40 = 92,495.20 : x
  2. Step 2: Convert to fraction form
    134,485.60/201,728.40 = 92,495.20/x
  3. Step 3: Cross multiply
    134,485.60x = 201,728.40 × 92,495.20
  4. Step 4: Simplify right side
    134,485.60x = 18,658,908,703.68
  5. Step 5: Solve for x
    x = 18,658,908,703.68/134,485.60
  6. Step 6: Final answer
    x = 138,742.80

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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.