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Finding the Fourth Proportional to 85,840.46, 118,459.24 and 47,599.98

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Solution

The fourth proportional to 85,840.46, 118,459.24 and 47,599.98 is: 65,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,840.46 : 118,459.24 = 47,599.98 : x
  2. Step 2: Convert to fraction form
    85,840.46/118,459.24 = 47,599.98/x
  3. Step 3: Cross multiply
    85,840.46x = 118,459.24 × 47,599.98
  4. Step 4: Simplify right side
    85,840.46x = 5,638,657,454.82
  5. Step 5: Solve for x
    x = 5,638,657,454.82/85,840.46
  6. Step 6: Final answer
    x = 65,687.64

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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.