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Finding the Fourth Proportional to 210,835.51, 316,393.34 and 98,524.42

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Solution

The fourth proportional to 210,835.51, 316,393.34 and 98,524.42 is: 147,852.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,835.51 : 316,393.34 = 98,524.42 : x
  2. Step 2: Convert to fraction form
    210,835.51/316,393.34 = 98,524.42/x
  3. Step 3: Cross multiply
    210,835.51x = 316,393.34 × 98,524.42
  4. Step 4: Simplify right side
    210,835.51x = 31,172,470,315.36
  5. Step 5: Solve for x
    x = 31,172,470,315.36/210,835.51
  6. Step 6: Final answer
    x = 147,852.09

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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.