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Finding the Fourth Proportional to 121,346.67, 182,101.95 and 42,461.58

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Solution

The fourth proportional to 121,346.67, 182,101.95 and 42,461.58 is: 63,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,346.67 : 182,101.95 = 42,461.58 : x
  2. Step 2: Convert to fraction form
    121,346.67/182,101.95 = 42,461.58/x
  3. Step 3: Cross multiply
    121,346.67x = 182,101.95 × 42,461.58
  4. Step 4: Simplify right side
    121,346.67x = 7,732,336,518.08
  5. Step 5: Solve for x
    x = 7,732,336,518.08/121,346.67
  6. Step 6: Final answer
    x = 63,721.04

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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.