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Finding the Fourth Proportional to 85,752.55, 118,355.11 and 49,477.46

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Solution

The fourth proportional to 85,752.55, 118,355.11 and 49,477.46 is: 68,288.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,752.55 : 118,355.11 = 49,477.46 : x
  2. Step 2: Convert to fraction form
    85,752.55/118,355.11 = 49,477.46/x
  3. Step 3: Cross multiply
    85,752.55x = 118,355.11 × 49,477.46
  4. Step 4: Simplify right side
    85,752.55x = 5,855,910,203.51
  5. Step 5: Solve for x
    x = 5,855,910,203.51/85,752.55
  6. Step 6: Final answer
    x = 68,288.46

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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.