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Finding the Fourth Proportional to 243,543.40, 365,315.76 and 75,058.32

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Solution

The fourth proportional to 243,543.40, 365,315.76 and 75,058.32 is: 112,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,543.40 : 365,315.76 = 75,058.32 : x
  2. Step 2: Convert to fraction form
    243,543.40/365,315.76 = 75,058.32/x
  3. Step 3: Cross multiply
    243,543.40x = 365,315.76 × 75,058.32
  4. Step 4: Simplify right side
    243,543.40x = 27,419,987,215.12
  5. Step 5: Solve for x
    x = 27,419,987,215.12/243,543.40
  6. Step 6: Final answer
    x = 112,587.68

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1.5x scale

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.