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Finding the Fourth Proportional to 107,802.74, 147,690.28 and 103,762.41

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Solution

The fourth proportional to 107,802.74, 147,690.28 and 103,762.41 is: 142,155.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,802.74 : 147,690.28 = 103,762.41 : x
  2. Step 2: Convert to fraction form
    107,802.74/147,690.28 = 103,762.41/x
  3. Step 3: Cross multiply
    107,802.74x = 147,690.28 × 103,762.41
  4. Step 4: Simplify right side
    107,802.74x = 15,324,698,647.92
  5. Step 5: Solve for x
    x = 15,324,698,647.92/107,802.74
  6. Step 6: Final answer
    x = 142,155.01

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.