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Finding the Fourth Proportional to 352,532.34, 528,686.19 and 115,820.10

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Solution

The fourth proportional to 352,532.34, 528,686.19 and 115,820.10 is: 173,693.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,532.34 : 528,686.19 = 115,820.10 : x
  2. Step 2: Convert to fraction form
    352,532.34/528,686.19 = 115,820.10/x
  3. Step 3: Cross multiply
    352,532.34x = 528,686.19 × 115,820.10
  4. Step 4: Simplify right side
    352,532.34x = 61,232,487,394.42
  5. Step 5: Solve for x
    x = 61,232,487,394.42/352,532.34
  6. Step 6: Final answer
    x = 173,693.25

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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.