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Finding the Fourth Proportional to 445,853.58, 668,639.88 and 146,264.35

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Solution

The fourth proportional to 445,853.58, 668,639.88 and 146,264.35 is: 219,350.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,853.58 : 668,639.88 = 146,264.35 : x
  2. Step 2: Convert to fraction form
    445,853.58/668,639.88 = 146,264.35/x
  3. Step 3: Cross multiply
    445,853.58x = 668,639.88 × 146,264.35
  4. Step 4: Simplify right side
    445,853.58x = 97,798,174,089.08
  5. Step 5: Solve for x
    x = 97,798,174,089.08/445,853.58
  6. Step 6: Final answer
    x = 219,350.43

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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.