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Finding the Fourth Proportional to 121,108.60, 181,662.90 and 62,059.60

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Solution

The fourth proportional to 121,108.60, 181,662.90 and 62,059.60 is: 93,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,108.60 : 181,662.90 = 62,059.60 : x
  2. Step 2: Convert to fraction form
    121,108.60/181,662.90 = 62,059.60/x
  3. Step 3: Cross multiply
    121,108.60x = 181,662.90 × 62,059.60
  4. Step 4: Simplify right side
    121,108.60x = 11,273,926,908.84
  5. Step 5: Solve for x
    x = 11,273,926,908.84/121,108.60
  6. Step 6: Final answer
    x = 93,089.40

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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.