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Finding the Fourth Proportional to 75,575.62, 104,301.72 and 56,422.16

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Solution

The fourth proportional to 75,575.62, 104,301.72 and 56,422.16 is: 77,868.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,575.62 : 104,301.72 = 56,422.16 : x
  2. Step 2: Convert to fraction form
    75,575.62/104,301.72 = 56,422.16/x
  3. Step 3: Cross multiply
    75,575.62x = 104,301.72 × 56,422.16
  4. Step 4: Simplify right side
    75,575.62x = 5,884,928,334.12
  5. Step 5: Solve for x
    x = 5,884,928,334.12/75,575.62
  6. Step 6: Final answer
    x = 77,868.08

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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.