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Finding the Fourth Proportional to 357,491.16, 535,420.08 and 170,633.88

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Solution

The fourth proportional to 357,491.16, 535,420.08 and 170,633.88 is: 255,561.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,491.16 : 535,420.08 = 170,633.88 : x
  2. Step 2: Convert to fraction form
    357,491.16/535,420.08 = 170,633.88/x
  3. Step 3: Cross multiply
    357,491.16x = 535,420.08 × 170,633.88
  4. Step 4: Simplify right side
    357,491.16x = 91,360,805,680.31
  5. Step 5: Solve for x
    x = 91,360,805,680.31/357,491.16
  6. Step 6: Final answer
    x = 255,561.02

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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.