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Finding the Fourth Proportional to 370,178.48, 555,269.16 and 89,695.28

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Solution

The fourth proportional to 370,178.48, 555,269.16 and 89,695.28 is: 134,543.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,178.48 : 555,269.16 = 89,695.28 : x
  2. Step 2: Convert to fraction form
    370,178.48/555,269.16 = 89,695.28/x
  3. Step 3: Cross multiply
    370,178.48x = 555,269.16 × 89,695.28
  4. Step 4: Simplify right side
    370,178.48x = 49,805,022,781.56
  5. Step 5: Solve for x
    x = 49,805,022,781.56/370,178.48
  6. Step 6: Final answer
    x = 134,543.27

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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.