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Finding the Fourth Proportional to 374,752.60, 562,128.90 and 125,434.60

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Solution

The fourth proportional to 374,752.60, 562,128.90 and 125,434.60 is: 188,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,752.60 : 562,128.90 = 125,434.60 : x
  2. Step 2: Convert to fraction form
    374,752.60/562,128.90 = 125,434.60/x
  3. Step 3: Cross multiply
    374,752.60x = 562,128.90 × 125,434.60
  4. Step 4: Simplify right side
    374,752.60x = 70,510,413,719.94
  5. Step 5: Solve for x
    x = 70,510,413,719.94/374,752.60
  6. Step 6: Final answer
    x = 188,151.90

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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.