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Finding the Fourth Proportional to 77,572.66, 107,050.70 and 43,582.58

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Solution

The fourth proportional to 77,572.66, 107,050.70 and 43,582.58 is: 60,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,572.66 : 107,050.70 = 43,582.58 : x
  2. Step 2: Convert to fraction form
    77,572.66/107,050.70 = 43,582.58/x
  3. Step 3: Cross multiply
    77,572.66x = 107,050.70 × 43,582.58
  4. Step 4: Simplify right side
    77,572.66x = 4,665,545,696.81
  5. Step 5: Solve for x
    x = 4,665,545,696.81/77,572.66
  6. Step 6: Final answer
    x = 60,144.20

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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.