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Finding the Fourth Proportional to 83,840.74, 115,699.05 and 45,599.45

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Solution

The fourth proportional to 83,840.74, 115,699.05 and 45,599.45 is: 62,926.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,840.74 : 115,699.05 = 45,599.45 : x
  2. Step 2: Convert to fraction form
    83,840.74/115,699.05 = 45,599.45/x
  3. Step 3: Cross multiply
    83,840.74x = 115,699.05 × 45,599.45
  4. Step 4: Simplify right side
    83,840.74x = 5,275,813,334.77
  5. Step 5: Solve for x
    x = 5,275,813,334.77/83,840.74
  6. Step 6: Final answer
    x = 62,926.61

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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.