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Finding the Fourth Proportional to 357,077.48, 535,619.25 and 90,838.22

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Solution

The fourth proportional to 357,077.48, 535,619.25 and 90,838.22 is: 136,258.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,077.48 : 535,619.25 = 90,838.22 : x
  2. Step 2: Convert to fraction form
    357,077.48/535,619.25 = 90,838.22/x
  3. Step 3: Cross multiply
    357,077.48x = 535,619.25 × 90,838.22
  4. Step 4: Simplify right side
    357,077.48x = 48,654,696,589.64
  5. Step 5: Solve for x
    x = 48,654,696,589.64/357,077.48
  6. Step 6: Final answer
    x = 136,258.10

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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.