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Finding the Fourth Proportional to 92,993.98, 128,334.35 and 56,697.52

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Solution

The fourth proportional to 92,993.98, 128,334.35 and 56,697.52 is: 78,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,993.98 : 128,334.35 = 56,697.52 : x
  2. Step 2: Convert to fraction form
    92,993.98/128,334.35 = 56,697.52/x
  3. Step 3: Cross multiply
    92,993.98x = 128,334.35 × 56,697.52
  4. Step 4: Simplify right side
    92,993.98x = 7,276,239,375.81
  5. Step 5: Solve for x
    x = 7,276,239,375.81/92,993.98
  6. Step 6: Final answer
    x = 78,244.20

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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.