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Finding the Fourth Proportional to 374,640.78, 561,948.72 and 174,686.01

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Solution

The fourth proportional to 374,640.78, 561,948.72 and 174,686.01 is: 262,023.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,640.78 : 561,948.72 = 174,686.01 : x
  2. Step 2: Convert to fraction form
    374,640.78/561,948.72 = 174,686.01/x
  3. Step 3: Cross multiply
    374,640.78x = 561,948.72 × 174,686.01
  4. Step 4: Simplify right side
    374,640.78x = 98,164,579,721.41
  5. Step 5: Solve for x
    x = 98,164,579,721.41/374,640.78
  6. Step 6: Final answer
    x = 262,023.21

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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.