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Finding the Fourth Proportional to 228,643.00, 315,579.80 and 152,165.28

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Solution

The fourth proportional to 228,643.00, 315,579.80 and 152,165.28 is: 210,023.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,643.00 : 315,579.80 = 152,165.28 : x
  2. Step 2: Convert to fraction form
    228,643.00/315,579.80 = 152,165.28/x
  3. Step 3: Cross multiply
    228,643.00x = 315,579.80 × 152,165.28
  4. Step 4: Simplify right side
    228,643.00x = 48,020,289,337.25
  5. Step 5: Solve for x
    x = 48,020,289,337.25/228,643.00
  6. Step 6: Final answer
    x = 210,023.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.