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Finding the Fourth Proportional to 357,693.20, 535,925.40 and 170,301.20

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Solution

The fourth proportional to 357,693.20, 535,925.40 and 170,301.20 is: 255,159.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,693.20 : 535,925.40 = 170,301.20 : x
  2. Step 2: Convert to fraction form
    357,693.20/535,925.40 = 170,301.20/x
  3. Step 3: Cross multiply
    357,693.20x = 535,925.40 × 170,301.20
  4. Step 4: Simplify right side
    357,693.20x = 91,268,738,730.48
  5. Step 5: Solve for x
    x = 91,268,738,730.48/357,693.20
  6. Step 6: Final answer
    x = 255,159.28

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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.