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Finding the Fourth Proportional to 153,460.60, 211,786.25 and 93,033.79

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Solution

The fourth proportional to 153,460.60, 211,786.25 and 93,033.79 is: 128,393.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,460.60 : 211,786.25 = 93,033.79 : x
  2. Step 2: Convert to fraction form
    153,460.60/211,786.25 = 93,033.79/x
  3. Step 3: Cross multiply
    153,460.60x = 211,786.25 × 93,033.79
  4. Step 4: Simplify right side
    153,460.60x = 19,703,277,507.39
  5. Step 5: Solve for x
    x = 19,703,277,507.39/153,460.60
  6. Step 6: Final answer
    x = 128,393.07

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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.