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Finding the Fourth Proportional to 85,353.68, 127,176.94 and 76,041.92

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Solution

The fourth proportional to 85,353.68, 127,176.94 and 76,041.92 is: 113,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,353.68 : 127,176.94 = 76,041.92 : x
  2. Step 2: Convert to fraction form
    85,353.68/127,176.94 = 76,041.92/x
  3. Step 3: Cross multiply
    85,353.68x = 127,176.94 × 76,041.92
  4. Step 4: Simplify right side
    85,353.68x = 9,670,778,697.32
  5. Step 5: Solve for x
    x = 9,670,778,697.32/85,353.68
  6. Step 6: Final answer
    x = 113,302.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.