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Finding the Fourth Proportional to 553,431.64, 830,095.62 and 179,457.88

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Solution

The fourth proportional to 553,431.64, 830,095.62 and 179,457.88 is: 269,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,431.64 : 830,095.62 = 179,457.88 : x
  2. Step 2: Convert to fraction form
    553,431.64/830,095.62 = 179,457.88/x
  3. Step 3: Cross multiply
    553,431.64x = 830,095.62 × 179,457.88
  4. Step 4: Simplify right side
    553,431.64x = 148,967,200,162.49
  5. Step 5: Solve for x
    x = 148,967,200,162.49/553,431.64
  6. Step 6: Final answer
    x = 269,170.01

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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.