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Finding the Fourth Proportional to 152,698.58, 210,714.04 and 84,715.39

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Solution

The fourth proportional to 152,698.58, 210,714.04 and 84,715.39 is: 116,901.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,698.58 : 210,714.04 = 84,715.39 : x
  2. Step 2: Convert to fraction form
    152,698.58/210,714.04 = 84,715.39/x
  3. Step 3: Cross multiply
    152,698.58x = 210,714.04 × 84,715.39
  4. Step 4: Simplify right side
    152,698.58x = 17,850,722,077.08
  5. Step 5: Solve for x
    x = 17,850,722,077.08/152,698.58
  6. Step 6: Final answer
    x = 116,901.69

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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.