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Finding the Fourth Proportional to 176,461.16, 264,434.76 and 81,720.32

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Solution

The fourth proportional to 176,461.16, 264,434.76 and 81,720.32 is: 122,461.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,461.16 : 264,434.76 = 81,720.32 : x
  2. Step 2: Convert to fraction form
    176,461.16/264,434.76 = 81,720.32/x
  3. Step 3: Cross multiply
    176,461.16x = 264,434.76 × 81,720.32
  4. Step 4: Simplify right side
    176,461.16x = 21,609,691,884.15
  5. Step 5: Solve for x
    x = 21,609,691,884.15/176,461.16
  6. Step 6: Final answer
    x = 122,461.47

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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.