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Finding the Fourth Proportional to 74,538.61, 102,962.48 and 73,454.23

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Solution

The fourth proportional to 74,538.61, 102,962.48 and 73,454.23 is: 101,464.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,538.61 : 102,962.48 = 73,454.23 : x
  2. Step 2: Convert to fraction form
    74,538.61/102,962.48 = 73,454.23/x
  3. Step 3: Cross multiply
    74,538.61x = 102,962.48 × 73,454.23
  4. Step 4: Simplify right side
    74,538.61x = 7,563,028,805.21
  5. Step 5: Solve for x
    x = 7,563,028,805.21/74,538.61
  6. Step 6: Final answer
    x = 101,464.59

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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.