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Finding the Fourth Proportional to 351,758.66, 527,643.78 and 99,045.23

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Solution

The fourth proportional to 351,758.66, 527,643.78 and 99,045.23 is: 148,569.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,758.66 : 527,643.78 = 99,045.23 : x
  2. Step 2: Convert to fraction form
    351,758.66/527,643.78 = 99,045.23/x
  3. Step 3: Cross multiply
    351,758.66x = 527,643.78 × 99,045.23
  4. Step 4: Simplify right side
    351,758.66x = 52,260,599,548.17
  5. Step 5: Solve for x
    x = 52,260,599,548.17/351,758.66
  6. Step 6: Final answer
    x = 148,569.48

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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.