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Finding the Fourth Proportional to 357,423.68, 535,319.04 and 170,566.40

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Solution

The fourth proportional to 357,423.68, 535,319.04 and 170,566.40 is: 255,459.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,423.68 : 535,319.04 = 170,566.40 : x
  2. Step 2: Convert to fraction form
    357,423.68/535,319.04 = 170,566.40/x
  3. Step 3: Cross multiply
    357,423.68x = 535,319.04 × 170,566.40
  4. Step 4: Simplify right side
    357,423.68x = 91,307,441,504.26
  5. Step 5: Solve for x
    x = 91,307,441,504.26/357,423.68
  6. Step 6: Final answer
    x = 255,459.97

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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.