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Finding the Fourth Proportional to 552,439.84, 828,567.48 and 153,121

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Solution

The fourth proportional to 552,439.84, 828,567.48 and 153,121 is: 229,655.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,439.84 : 828,567.48 = 153,121 : x
  2. Step 2: Convert to fraction form
    552,439.84/828,567.48 = 153,121/x
  3. Step 3: Cross multiply
    552,439.84x = 828,567.48 × 153,121
  4. Step 4: Simplify right side
    552,439.84x = 126,871,081,105.08
  5. Step 5: Solve for x
    x = 126,871,081,105.08/552,439.84
  6. Step 6: Final answer
    x = 229,655.92

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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.