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Finding the Fourth Proportional to 107,312.87, 148,093.50 and 58,919.26

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Solution

The fourth proportional to 107,312.87, 148,093.50 and 58,919.26 is: 81,309.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,312.87 : 148,093.50 = 58,919.26 : x
  2. Step 2: Convert to fraction form
    107,312.87/148,093.50 = 58,919.26/x
  3. Step 3: Cross multiply
    107,312.87x = 148,093.50 × 58,919.26
  4. Step 4: Simplify right side
    107,312.87x = 8,725,559,430.81
  5. Step 5: Solve for x
    x = 8,725,559,430.81/107,312.87
  6. Step 6: Final answer
    x = 81,309.53

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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.