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Finding the Fourth Proportional to 238,933, 358,421.82 and 70,453.48

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Solution

The fourth proportional to 238,933, 358,421.82 and 70,453.48 is: 105,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,933 : 358,421.82 = 70,453.48 : x
  2. Step 2: Convert to fraction form
    238,933/358,421.82 = 70,453.48/x
  3. Step 3: Cross multiply
    238,933x = 358,421.82 × 70,453.48
  4. Step 4: Simplify right side
    238,933x = 25,252,064,526.93
  5. Step 5: Solve for x
    x = 25,252,064,526.93/238,933
  6. Step 6: Final answer
    x = 105,686.80

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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.