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Finding the Fourth Proportional to 172,210.56, 258,308.64 and 59,916.24

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Solution

The fourth proportional to 172,210.56, 258,308.64 and 59,916.24 is: 89,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,210.56 : 258,308.64 = 59,916.24 : x
  2. Step 2: Convert to fraction form
    172,210.56/258,308.64 = 59,916.24/x
  3. Step 3: Cross multiply
    172,210.56x = 258,308.64 × 59,916.24
  4. Step 4: Simplify right side
    172,210.56x = 15,476,882,468.31
  5. Step 5: Solve for x
    x = 15,476,882,468.31/172,210.56
  6. Step 6: Final answer
    x = 89,871.85

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1.5x scale

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.