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Finding the Fourth Proportional to 59,780.34, 89,700.93 and 45,829.71

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Solution

The fourth proportional to 59,780.34, 89,700.93 and 45,829.71 is: 68,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,780.34 : 89,700.93 = 45,829.71 : x
  2. Step 2: Convert to fraction form
    59,780.34/89,700.93 = 45,829.71/x
  3. Step 3: Cross multiply
    59,780.34x = 89,700.93 × 45,829.71
  4. Step 4: Simplify right side
    59,780.34x = 4,110,967,608.63
  5. Step 5: Solve for x
    x = 4,110,967,608.63/59,780.34
  6. Step 6: Final answer
    x = 68,767.89

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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.