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Finding the Fourth Proportional to 77,459.76, 106,894.46 and 43,925.76

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Solution

The fourth proportional to 77,459.76, 106,894.46 and 43,925.76 is: 60,617.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,459.76 : 106,894.46 = 43,925.76 : x
  2. Step 2: Convert to fraction form
    77,459.76/106,894.46 = 43,925.76/x
  3. Step 3: Cross multiply
    77,459.76x = 106,894.46 × 43,925.76
  4. Step 4: Simplify right side
    77,459.76x = 4,695,420,395.29
  5. Step 5: Solve for x
    x = 4,695,420,395.29/77,459.76
  6. Step 6: Final answer
    x = 60,617.54

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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.