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Finding the Fourth Proportional to 338,518.60, 507,632.10 and 169,973.80

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Solution

The fourth proportional to 338,518.60, 507,632.10 and 169,973.80 is: 254,887.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,518.60 : 507,632.10 = 169,973.80 : x
  2. Step 2: Convert to fraction form
    338,518.60/507,632.10 = 169,973.80/x
  3. Step 3: Cross multiply
    338,518.60x = 507,632.10 × 169,973.80
  4. Step 4: Simplify right side
    338,518.60x = 86,284,157,038.98
  5. Step 5: Solve for x
    x = 86,284,157,038.98/338,518.60
  6. Step 6: Final answer
    x = 254,887.49

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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.