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Finding the Fourth Proportional to 92,187.30, 127,234.36 and 53,419.69

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Solution

The fourth proportional to 92,187.30, 127,234.36 and 53,419.69 is: 73,728.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,187.30 : 127,234.36 = 53,419.69 : x
  2. Step 2: Convert to fraction form
    92,187.30/127,234.36 = 53,419.69/x
  3. Step 3: Cross multiply
    92,187.30x = 127,234.36 × 53,419.69
  4. Step 4: Simplify right side
    92,187.30x = 6,796,820,068.55
  5. Step 5: Solve for x
    x = 6,796,820,068.55/92,187.30
  6. Step 6: Final answer
    x = 73,728.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.