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Finding the Fourth Proportional to 85,455.95, 117,829.18 and 58,248.14

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Solution

The fourth proportional to 85,455.95, 117,829.18 and 58,248.14 is: 80,314.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,455.95 : 117,829.18 = 58,248.14 : x
  2. Step 2: Convert to fraction form
    85,455.95/117,829.18 = 58,248.14/x
  3. Step 3: Cross multiply
    85,455.95x = 117,829.18 × 58,248.14
  4. Step 4: Simplify right side
    85,455.95x = 6,863,331,410.66
  5. Step 5: Solve for x
    x = 6,863,331,410.66/85,455.95
  6. Step 6: Final answer
    x = 80,314.26

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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.