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Finding the Fourth Proportional to 58,811.16, 81,128.34 and 37,262.88

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Solution

The fourth proportional to 58,811.16, 81,128.34 and 37,262.88 is: 51,403.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,811.16 : 81,128.34 = 37,262.88 : x
  2. Step 2: Convert to fraction form
    58,811.16/81,128.34 = 37,262.88/x
  3. Step 3: Cross multiply
    58,811.16x = 81,128.34 × 37,262.88
  4. Step 4: Simplify right side
    58,811.16x = 3,023,075,598.02
  5. Step 5: Solve for x
    x = 3,023,075,598.02/58,811.16
  6. Step 6: Final answer
    x = 51,403.09

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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.