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Finding the Fourth Proportional to 370,259.42, 555,389.22 and 89,776.64

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Solution

The fourth proportional to 370,259.42, 555,389.22 and 89,776.64 is: 134,664.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,259.42 : 555,389.22 = 89,776.64 : x
  2. Step 2: Convert to fraction form
    370,259.42/555,389.22 = 89,776.64/x
  3. Step 3: Cross multiply
    370,259.42x = 555,389.22 × 89,776.64
  4. Step 4: Simplify right side
    370,259.42x = 49,860,978,063.82
  5. Step 5: Solve for x
    x = 49,860,978,063.82/370,259.42
  6. Step 6: Final answer
    x = 134,664.98

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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.