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Finding the Fourth Proportional to 374,775.15, 562,128.17 and 125,459.31

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Solution

The fourth proportional to 374,775.15, 562,128.17 and 125,459.31 is: 188,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,775.15 : 562,128.17 = 125,459.31 : x
  2. Step 2: Convert to fraction form
    374,775.15/562,128.17 = 125,459.31/x
  3. Step 3: Cross multiply
    374,775.15x = 562,128.17 × 125,459.31
  4. Step 4: Simplify right side
    374,775.15x = 70,524,211,712.47
  5. Step 5: Solve for x
    x = 70,524,211,712.47/374,775.15
  6. Step 6: Final answer
    x = 188,177.40

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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.