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Finding the Fourth Proportional to 370,208.42, 555,312.63 and 89,725.67

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Solution

The fourth proportional to 370,208.42, 555,312.63 and 89,725.67 is: 134,588.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,208.42 : 555,312.63 = 89,725.67 : x
  2. Step 2: Convert to fraction form
    370,208.42/555,312.63 = 89,725.67/x
  3. Step 3: Cross multiply
    370,208.42x = 555,312.63 × 89,725.67
  4. Step 4: Simplify right side
    370,208.42x = 49,825,794,561.02
  5. Step 5: Solve for x
    x = 49,825,794,561.02/370,208.42
  6. Step 6: Final answer
    x = 134,588.50

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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.