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Finding the Fourth Proportional to 107,031.88, 147,664.34 and 69,326.92

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Solution

The fourth proportional to 107,031.88, 147,664.34 and 69,326.92 is: 95,645.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,031.88 : 147,664.34 = 69,326.92 : x
  2. Step 2: Convert to fraction form
    107,031.88/147,664.34 = 69,326.92/x
  3. Step 3: Cross multiply
    107,031.88x = 147,664.34 × 69,326.92
  4. Step 4: Simplify right side
    107,031.88x = 10,237,113,886.03
  5. Step 5: Solve for x
    x = 10,237,113,886.03/107,031.88
  6. Step 6: Final answer
    x = 95,645.46

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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.