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Finding the Fourth Proportional to 70,159.06, 105,238.65 and 19,556.06

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Solution

The fourth proportional to 70,159.06, 105,238.65 and 19,556.06 is: 29,334.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,159.06 : 105,238.65 = 19,556.06 : x
  2. Step 2: Convert to fraction form
    70,159.06/105,238.65 = 19,556.06/x
  3. Step 3: Cross multiply
    70,159.06x = 105,238.65 × 19,556.06
  4. Step 4: Simplify right side
    70,159.06x = 2,058,053,353.72
  5. Step 5: Solve for x
    x = 2,058,053,353.72/70,159.06
  6. Step 6: Final answer
    x = 29,334.11

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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.