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Finding the Fourth Proportional to 238,888.32, 358,384.32 and 72,672

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Solution

The fourth proportional to 238,888.32, 358,384.32 and 72,672 is: 109,023.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,888.32 : 358,384.32 = 72,672 : x
  2. Step 2: Convert to fraction form
    238,888.32/358,384.32 = 72,672/x
  3. Step 3: Cross multiply
    238,888.32x = 358,384.32 × 72,672
  4. Step 4: Simplify right side
    238,888.32x = 26,044,505,303.04
  5. Step 5: Solve for x
    x = 26,044,505,303.04/238,888.32
  6. Step 6: Final answer
    x = 109,023.77

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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.