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Finding the Fourth Proportional to 292,662.76, 438,692.82 and 115,097.80

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Solution

The fourth proportional to 292,662.76, 438,692.82 and 115,097.80 is: 172,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,662.76 : 438,692.82 = 115,097.80 : x
  2. Step 2: Convert to fraction form
    292,662.76/438,692.82 = 115,097.80/x
  3. Step 3: Cross multiply
    292,662.76x = 438,692.82 × 115,097.80
  4. Step 4: Simplify right side
    292,662.76x = 50,492,578,457.80
  5. Step 5: Solve for x
    x = 50,492,578,457.80/292,662.76
  6. Step 6: Final answer
    x = 172,528.20

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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.