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Finding the Fourth Proportional to 77,248.99, 106,591.29 and 43,258.91

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Solution

The fourth proportional to 77,248.99, 106,591.29 and 43,258.91 is: 59,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,248.99 : 106,591.29 = 43,258.91 : x
  2. Step 2: Convert to fraction form
    77,248.99/106,591.29 = 43,258.91/x
  3. Step 3: Cross multiply
    77,248.99x = 106,591.29 × 43,258.91
  4. Step 4: Simplify right side
    77,248.99x = 4,611,023,168.62
  5. Step 5: Solve for x
    x = 4,611,023,168.62/77,248.99
  6. Step 6: Final answer
    x = 59,690.40

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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.