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Finding the Fourth Proportional to 103,574.32, 155,394.12 and 37,012.96

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Solution

The fourth proportional to 103,574.32, 155,394.12 and 37,012.96 is: 55,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,574.32 : 155,394.12 = 37,012.96 : x
  2. Step 2: Convert to fraction form
    103,574.32/155,394.12 = 37,012.96/x
  3. Step 3: Cross multiply
    103,574.32x = 155,394.12 × 37,012.96
  4. Step 4: Simplify right side
    103,574.32x = 5,751,596,347.80
  5. Step 5: Solve for x
    x = 5,751,596,347.80/103,574.32
  6. Step 6: Final answer
    x = 55,531.10

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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.