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Finding the Fourth Proportional to 103,596.58, 142,975.93 and 58,276.47

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Solution

The fourth proportional to 103,596.58, 142,975.93 and 58,276.47 is: 80,428.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,596.58 : 142,975.93 = 58,276.47 : x
  2. Step 2: Convert to fraction form
    103,596.58/142,975.93 = 58,276.47/x
  3. Step 3: Cross multiply
    103,596.58x = 142,975.93 × 58,276.47
  4. Step 4: Simplify right side
    103,596.58x = 8,332,132,349.68
  5. Step 5: Solve for x
    x = 8,332,132,349.68/103,596.58
  6. Step 6: Final answer
    x = 80,428.64

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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.