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Finding the Fourth Proportional to 153,929.45, 214,976.35 and 153,929.45

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Solution

The fourth proportional to 153,929.45, 214,976.35 and 153,929.45 is: 214,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,929.45 : 214,976.35 = 153,929.45 : x
  2. Step 2: Convert to fraction form
    153,929.45/214,976.35 = 153,929.45/x
  3. Step 3: Cross multiply
    153,929.45x = 214,976.35 × 153,929.45
  4. Step 4: Simplify right side
    153,929.45x = 33,091,191,318.51
  5. Step 5: Solve for x
    x = 33,091,191,318.51/153,929.45
  6. Step 6: Final answer
    x = 214,976.35

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.