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Finding the Fourth Proportional to 374,429,905.20, 561,644,857.80 and 170,356,561.20

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Solution

The fourth proportional to 374,429,905.20, 561,644,857.80 and 170,356,561.20 is: 255,534,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,429,905.20 : 561,644,857.80 = 170,356,561.20 : x
  2. Step 2: Convert to fraction form
    374,429,905.20/561,644,857.80 = 170,356,561.20/x
  3. Step 3: Cross multiply
    374,429,905.20x = 561,644,857.80 × 170,356,561.20
  4. Step 4: Simplify right side
    374,429,905.20x = 95,679,886,590,470,976
  5. Step 5: Solve for x
    x = 95,679,886,590,470,976/374,429,905.20
  6. Step 6: Final answer
    x = 255,534,841.80

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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.