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Finding the Fourth Proportional to 346,730.54, 520,175.64 and 147,058.70

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Solution

The fourth proportional to 346,730.54, 520,175.64 and 147,058.70 is: 220,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,730.54 : 520,175.64 = 147,058.70 : x
  2. Step 2: Convert to fraction form
    346,730.54/520,175.64 = 147,058.70/x
  3. Step 3: Cross multiply
    346,730.54x = 520,175.64 × 147,058.70
  4. Step 4: Simplify right side
    346,730.54x = 76,496,353,390.07
  5. Step 5: Solve for x
    x = 76,496,353,390.07/346,730.54
  6. Step 6: Final answer
    x = 220,621.91

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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.