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Finding the Fourth Proportional to 357,998.55, 537,021.53 and 105,301.64

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Solution

The fourth proportional to 357,998.55, 537,021.53 and 105,301.64 is: 157,959.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,998.55 : 537,021.53 = 105,301.64 : x
  2. Step 2: Convert to fraction form
    357,998.55/537,021.53 = 105,301.64/x
  3. Step 3: Cross multiply
    357,998.55x = 537,021.53 × 105,301.64
  4. Step 4: Simplify right side
    357,998.55x = 56,549,244,612.69
  5. Step 5: Solve for x
    x = 56,549,244,612.69/357,998.55
  6. Step 6: Final answer
    x = 157,959.42

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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.