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Finding the Fourth Proportional to 217,393.44, 299,864.88 and 157,052.76

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Solution

The fourth proportional to 217,393.44, 299,864.88 and 157,052.76 is: 216,633.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,393.44 : 299,864.88 = 157,052.76 : x
  2. Step 2: Convert to fraction form
    217,393.44/299,864.88 = 157,052.76/x
  3. Step 3: Cross multiply
    217,393.44x = 299,864.88 × 157,052.76
  4. Step 4: Simplify right side
    217,393.44x = 47,094,607,031.07
  5. Step 5: Solve for x
    x = 47,094,607,031.07/217,393.44
  6. Step 6: Final answer
    x = 216,633.06

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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.