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Finding the Fourth Proportional to 356,803.48, 535,207.01 and 90,564.08

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Solution

The fourth proportional to 356,803.48, 535,207.01 and 90,564.08 is: 135,846.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,803.48 : 535,207.01 = 90,564.08 : x
  2. Step 2: Convert to fraction form
    356,803.48/535,207.01 = 90,564.08/x
  3. Step 3: Cross multiply
    356,803.48x = 535,207.01 × 90,564.08
  4. Step 4: Simplify right side
    356,803.48x = 48,470,527,341.35
  5. Step 5: Solve for x
    x = 48,470,527,341.35/356,803.48
  6. Step 6: Final answer
    x = 135,846.57

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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.