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Finding the Fourth Proportional to 172,011.08, 257,914.42 and 65,402.84

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Solution

The fourth proportional to 172,011.08, 257,914.42 and 65,402.84 is: 98,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,011.08 : 257,914.42 = 65,402.84 : x
  2. Step 2: Convert to fraction form
    172,011.08/257,914.42 = 65,402.84/x
  3. Step 3: Cross multiply
    172,011.08x = 257,914.42 × 65,402.84
  4. Step 4: Simplify right side
    172,011.08x = 16,868,336,026.23
  5. Step 5: Solve for x
    x = 16,868,336,026.23/172,011.08
  6. Step 6: Final answer
    x = 98,065.40

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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.