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Finding the Fourth Proportional to 373,127.56, 514,929.80 and 212,009.92

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Solution

The fourth proportional to 373,127.56, 514,929.80 and 212,009.92 is: 292,581.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,127.56 : 514,929.80 = 212,009.92 : x
  2. Step 2: Convert to fraction form
    373,127.56/514,929.80 = 212,009.92/x
  3. Step 3: Cross multiply
    373,127.56x = 514,929.80 × 212,009.92
  4. Step 4: Simplify right side
    373,127.56x = 109,170,225,703.62
  5. Step 5: Solve for x
    x = 109,170,225,703.62/373,127.56
  6. Step 6: Final answer
    x = 292,581.51

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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.