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Finding the Fourth Proportional to 352,172.48, 528,300.84 and 124,420.95

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Solution

The fourth proportional to 352,172.48, 528,300.84 and 124,420.95 is: 186,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,172.48 : 528,300.84 = 124,420.95 : x
  2. Step 2: Convert to fraction form
    352,172.48/528,300.84 = 124,420.95/x
  3. Step 3: Cross multiply
    352,172.48x = 528,300.84 × 124,420.95
  4. Step 4: Simplify right side
    352,172.48x = 65,731,692,398.60
  5. Step 5: Solve for x
    x = 65,731,692,398.60/352,172.48
  6. Step 6: Final answer
    x = 186,646.30

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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.