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Finding the Fourth Proportional to 83,437.80, 124,995.42 and 46,389.48

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Solution

The fourth proportional to 83,437.80, 124,995.42 and 46,389.48 is: 69,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,437.80 : 124,995.42 = 46,389.48 : x
  2. Step 2: Convert to fraction form
    83,437.80/124,995.42 = 46,389.48/x
  3. Step 3: Cross multiply
    83,437.80x = 124,995.42 × 46,389.48
  4. Step 4: Simplify right side
    83,437.80x = 5,798,472,536.18
  5. Step 5: Solve for x
    x = 5,798,472,536.18/83,437.80
  6. Step 6: Final answer
    x = 69,494.55

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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.