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Finding the Fourth Proportional to 121,570, 182,420.46 and 59,240.50

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Solution

The fourth proportional to 121,570, 182,420.46 and 59,240.50 is: 88,892.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,570 : 182,420.46 = 59,240.50 : x
  2. Step 2: Convert to fraction form
    121,570/182,420.46 = 59,240.50/x
  3. Step 3: Cross multiply
    121,570x = 182,420.46 × 59,240.50
  4. Step 4: Simplify right side
    121,570x = 10,806,679,260.63
  5. Step 5: Solve for x
    x = 10,806,679,260.63/121,570
  6. Step 6: Final answer
    x = 88,892.65

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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.