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Finding the Fourth Proportional to 92,498.81, 127,561.73 and 61,399.05

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Solution

The fourth proportional to 92,498.81, 127,561.73 and 61,399.05 is: 84,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,498.81 : 127,561.73 = 61,399.05 : x
  2. Step 2: Convert to fraction form
    92,498.81/127,561.73 = 61,399.05/x
  3. Step 3: Cross multiply
    92,498.81x = 127,561.73 × 61,399.05
  4. Step 4: Simplify right side
    92,498.81x = 7,832,168,731.36
  5. Step 5: Solve for x
    x = 7,832,168,731.36/92,498.81
  6. Step 6: Final answer
    x = 84,673.19

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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.