Home / 351,811.49-527,717.66-85,570.16

Finding the Fourth Proportional to 351,811.49, 527,717.66 and 85,570.16

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Solution

The fourth proportional to 351,811.49, 527,717.66 and 85,570.16 is: 128,355.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,811.49 : 527,717.66 = 85,570.16 : x
  2. Step 2: Convert to fraction form
    351,811.49/527,717.66 = 85,570.16/x
  3. Step 3: Cross multiply
    351,811.49x = 527,717.66 × 85,570.16
  4. Step 4: Simplify right side
    351,811.49x = 45,156,881,534.59
  5. Step 5: Solve for x
    x = 45,156,881,534.59/351,811.49
  6. Step 6: Final answer
    x = 128,355.34

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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.