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Finding the Fourth Proportional to 470,871.88, 706,751.70 and 171,641.68

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Solution

The fourth proportional to 470,871.88, 706,751.70 and 171,641.68 is: 257,624.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,871.88 : 706,751.70 = 171,641.68 : x
  2. Step 2: Convert to fraction form
    470,871.88/706,751.70 = 171,641.68/x
  3. Step 3: Cross multiply
    470,871.88x = 706,751.70 × 171,641.68
  4. Step 4: Simplify right side
    470,871.88x = 121,308,049,130.86
  5. Step 5: Solve for x
    x = 121,308,049,130.86/470,871.88
  6. Step 6: Final answer
    x = 257,624.32

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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.