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Finding the Fourth Proportional to 238,807.17, 358,134.48 and 78,853.32

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Solution

The fourth proportional to 238,807.17, 358,134.48 and 78,853.32 is: 118,254.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,807.17 : 358,134.48 = 78,853.32 : x
  2. Step 2: Convert to fraction form
    238,807.17/358,134.48 = 78,853.32/x
  3. Step 3: Cross multiply
    238,807.17x = 358,134.48 × 78,853.32
  4. Step 4: Simplify right side
    238,807.17x = 28,240,092,754.47
  5. Step 5: Solve for x
    x = 28,240,092,754.47/238,807.17
  6. Step 6: Final answer
    x = 118,254.79

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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.