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Finding the Fourth Proportional to 92,057.51, 127,045.56 and 69,356.45

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Solution

The fourth proportional to 92,057.51, 127,045.56 and 69,356.45 is: 95,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,057.51 : 127,045.56 = 69,356.45 : x
  2. Step 2: Convert to fraction form
    92,057.51/127,045.56 = 69,356.45/x
  3. Step 3: Cross multiply
    92,057.51x = 127,045.56 × 69,356.45
  4. Step 4: Simplify right side
    92,057.51x = 8,811,429,607.56
  5. Step 5: Solve for x
    x = 8,811,429,607.56/92,057.51
  6. Step 6: Final answer
    x = 95,716.57

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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.