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Finding the Fourth Proportional to 92,693.76, 139,075.44 and 42,797.76

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Solution

The fourth proportional to 92,693.76, 139,075.44 and 42,797.76 is: 64,212.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,693.76 : 139,075.44 = 42,797.76 : x
  2. Step 2: Convert to fraction form
    92,693.76/139,075.44 = 42,797.76/x
  3. Step 3: Cross multiply
    92,693.76x = 139,075.44 × 42,797.76
  4. Step 4: Simplify right side
    92,693.76x = 5,952,117,303.01
  5. Step 5: Solve for x
    x = 5,952,117,303.01/92,693.76
  6. Step 6: Final answer
    x = 64,212.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.