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Finding the Fourth Proportional to 343,225.96, 514,837.32 and 87,058.60

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Solution

The fourth proportional to 343,225.96, 514,837.32 and 87,058.60 is: 130,587.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,225.96 : 514,837.32 = 87,058.60 : x
  2. Step 2: Convert to fraction form
    343,225.96/514,837.32 = 87,058.60/x
  3. Step 3: Cross multiply
    343,225.96x = 514,837.32 × 87,058.60
  4. Step 4: Simplify right side
    343,225.96x = 44,821,016,306.95
  5. Step 5: Solve for x
    x = 44,821,016,306.95/343,225.96
  6. Step 6: Final answer
    x = 130,587.49

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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.