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Finding the Fourth Proportional to 374,051.03, 516,193.71 and 212,916.45

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Solution

The fourth proportional to 374,051.03, 516,193.71 and 212,916.45 is: 293,826.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,051.03 : 516,193.71 = 212,916.45 : x
  2. Step 2: Convert to fraction form
    374,051.03/516,193.71 = 212,916.45/x
  3. Step 3: Cross multiply
    374,051.03x = 516,193.71 × 212,916.45
  4. Step 4: Simplify right side
    374,051.03x = 109,906,132,275.71
  5. Step 5: Solve for x
    x = 109,906,132,275.71/374,051.03
  6. Step 6: Final answer
    x = 293,826.58

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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.