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Finding the Fourth Proportional to 81,356.52, 112,259.08 and 45,548.04

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Solution

The fourth proportional to 81,356.52, 112,259.08 and 45,548.04 is: 62,849.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,356.52 : 112,259.08 = 45,548.04 : x
  2. Step 2: Convert to fraction form
    81,356.52/112,259.08 = 45,548.04/x
  3. Step 3: Cross multiply
    81,356.52x = 112,259.08 × 45,548.04
  4. Step 4: Simplify right side
    81,356.52x = 5,113,181,066.20
  5. Step 5: Solve for x
    x = 5,113,181,066.20/81,356.52
  6. Step 6: Final answer
    x = 62,849.06

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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.