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Finding the Fourth Proportional to 86,854.82, 119,695.85 and 69,607.60

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Solution

The fourth proportional to 86,854.82, 119,695.85 and 69,607.60 is: 95,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,854.82 : 119,695.85 = 69,607.60 : x
  2. Step 2: Convert to fraction form
    86,854.82/119,695.85 = 69,607.60/x
  3. Step 3: Cross multiply
    86,854.82x = 119,695.85 × 69,607.60
  4. Step 4: Simplify right side
    86,854.82x = 8,331,740,201.18
  5. Step 5: Solve for x
    x = 8,331,740,201.18/86,854.82
  6. Step 6: Final answer
    x = 95,927.20

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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.