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Finding the Fourth Proportional to 103,673.68, 155,512.92 and 37,118.40

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Solution

The fourth proportional to 103,673.68, 155,512.92 and 37,118.40 is: 55,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,673.68 : 155,512.92 = 37,118.40 : x
  2. Step 2: Convert to fraction form
    103,673.68/155,512.92 = 37,118.40/x
  3. Step 3: Cross multiply
    103,673.68x = 155,512.92 × 37,118.40
  4. Step 4: Simplify right side
    103,673.68x = 5,772,390,769.73
  5. Step 5: Solve for x
    x = 5,772,390,769.73/103,673.68
  6. Step 6: Final answer
    x = 55,678.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.