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Finding the Fourth Proportional to 357,081.11, 535,761.09 and 157,261.07

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Solution

The fourth proportional to 357,081.11, 535,761.09 and 157,261.07 is: 235,953.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,081.11 : 535,761.09 = 157,261.07 : x
  2. Step 2: Convert to fraction form
    357,081.11/535,761.09 = 157,261.07/x
  3. Step 3: Cross multiply
    357,081.11x = 535,761.09 × 157,261.07
  4. Step 4: Simplify right side
    357,081.11x = 84,254,359,598.96
  5. Step 5: Solve for x
    x = 84,254,359,598.96/357,081.11
  6. Step 6: Final answer
    x = 235,953.00

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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.