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Finding the Fourth Proportional to 117,553.20, 176,405.40 and 65,000.40

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Solution

The fourth proportional to 117,553.20, 176,405.40 and 65,000.40 is: 97,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,553.20 : 176,405.40 = 65,000.40 : x
  2. Step 2: Convert to fraction form
    117,553.20/176,405.40 = 65,000.40/x
  3. Step 3: Cross multiply
    117,553.20x = 176,405.40 × 65,000.40
  4. Step 4: Simplify right side
    117,553.20x = 11,466,421,562.16
  5. Step 5: Solve for x
    x = 11,466,421,562.16/117,553.20
  6. Step 6: Final answer
    x = 97,542.40

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1.5x scale

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.