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Finding the Fourth Proportional to 402,646.07, 603,526.21 and 165,859.58

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Solution

The fourth proportional to 402,646.07, 603,526.21 and 165,859.58 is: 248,606.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,646.07 : 603,526.21 = 165,859.58 : x
  2. Step 2: Convert to fraction form
    402,646.07/603,526.21 = 165,859.58/x
  3. Step 3: Cross multiply
    402,646.07x = 603,526.21 × 165,859.58
  4. Step 4: Simplify right side
    402,646.07x = 100,100,604,803.76
  5. Step 5: Solve for x
    x = 100,100,604,803.76/402,646.07
  6. Step 6: Final answer
    x = 248,606.93

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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.