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Finding the Fourth Proportional to 86,374.49, 119,148.67 and 50,557.60

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Solution

The fourth proportional to 86,374.49, 119,148.67 and 50,557.60 is: 69,741.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,374.49 : 119,148.67 = 50,557.60 : x
  2. Step 2: Convert to fraction form
    86,374.49/119,148.67 = 50,557.60/x
  3. Step 3: Cross multiply
    86,374.49x = 119,148.67 × 50,557.60
  4. Step 4: Simplify right side
    86,374.49x = 6,023,871,010.52
  5. Step 5: Solve for x
    x = 6,023,871,010.52/86,374.49
  6. Step 6: Final answer
    x = 69,741.32

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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.