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Finding the Fourth Proportional to 85,490.70, 117,973.50 and 47,248.27

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Solution

The fourth proportional to 85,490.70, 117,973.50 and 47,248.27 is: 65,200.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,490.70 : 117,973.50 = 47,248.27 : x
  2. Step 2: Convert to fraction form
    85,490.70/117,973.50 = 47,248.27/x
  3. Step 3: Cross multiply
    85,490.70x = 117,973.50 × 47,248.27
  4. Step 4: Simplify right side
    85,490.70x = 5,574,044,337.56
  5. Step 5: Solve for x
    x = 5,574,044,337.56/85,490.70
  6. Step 6: Final answer
    x = 65,200.59

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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.