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Finding the Fourth Proportional to 134,461.60, 201,670.80 and 40,945.60

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Solution

The fourth proportional to 134,461.60, 201,670.80 and 40,945.60 is: 61,411.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,461.60 : 201,670.80 = 40,945.60 : x
  2. Step 2: Convert to fraction form
    134,461.60/201,670.80 = 40,945.60/x
  3. Step 3: Cross multiply
    134,461.60x = 201,670.80 × 40,945.60
  4. Step 4: Simplify right side
    134,461.60x = 8,257,531,908.48
  5. Step 5: Solve for x
    x = 8,257,531,908.48/134,461.60
  6. Step 6: Final answer
    x = 61,411.82

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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.