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Finding the Fourth Proportional to 124,614, 171,965.76 and 70,898.88

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Solution

The fourth proportional to 124,614, 171,965.76 and 70,898.88 is: 97,839.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,614 : 171,965.76 = 70,898.88 : x
  2. Step 2: Convert to fraction form
    124,614/171,965.76 = 70,898.88/x
  3. Step 3: Cross multiply
    124,614x = 171,965.76 × 70,898.88
  4. Step 4: Simplify right side
    124,614x = 12,192,179,782.35
  5. Step 5: Solve for x
    x = 12,192,179,782.35/124,614
  6. Step 6: Final answer
    x = 97,839.57

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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.