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Finding the Fourth Proportional to 357,442.80, 535,347.36 and 170,585.52

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Solution

The fourth proportional to 357,442.80, 535,347.36 and 170,585.52 is: 255,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,442.80 : 535,347.36 = 170,585.52 : x
  2. Step 2: Convert to fraction form
    357,442.80/535,347.36 = 170,585.52/x
  3. Step 3: Cross multiply
    357,442.80x = 535,347.36 × 170,585.52
  4. Step 4: Simplify right side
    357,442.80x = 91,322,507,786.23
  5. Step 5: Solve for x
    x = 91,322,507,786.23/357,442.80
  6. Step 6: Final answer
    x = 255,488.45

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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.