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Finding the Fourth Proportional to 107,424.68, 148,307.84 and 71,732.84

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Solution

The fourth proportional to 107,424.68, 148,307.84 and 71,732.84 is: 99,032.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,424.68 : 148,307.84 = 71,732.84 : x
  2. Step 2: Convert to fraction form
    107,424.68/148,307.84 = 71,732.84/x
  3. Step 3: Cross multiply
    107,424.68x = 148,307.84 × 71,732.84
  4. Step 4: Simplify right side
    107,424.68x = 10,638,542,557.47
  5. Step 5: Solve for x
    x = 10,638,542,557.47/107,424.68
  6. Step 6: Final answer
    x = 99,032.57

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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.