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Finding the Fourth Proportional to 357,430.84, 535,988.80 and 167,945.10

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Solution

The fourth proportional to 357,430.84, 535,988.80 and 167,945.10 is: 251,843.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,430.84 : 535,988.80 = 167,945.10 : x
  2. Step 2: Convert to fraction form
    357,430.84/535,988.80 = 167,945.10/x
  3. Step 3: Cross multiply
    357,430.84x = 535,988.80 × 167,945.10
  4. Step 4: Simplify right side
    357,430.84x = 90,016,692,614.88
  5. Step 5: Solve for x
    x = 90,016,692,614.88/357,430.84
  6. Step 6: Final answer
    x = 251,843.66

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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.