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Finding the Fourth Proportional to 354,315.21, 531,192.15 and 176,730.81

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Solution

The fourth proportional to 354,315.21, 531,192.15 and 176,730.81 is: 264,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,315.21 : 531,192.15 = 176,730.81 : x
  2. Step 2: Convert to fraction form
    354,315.21/531,192.15 = 176,730.81/x
  3. Step 3: Cross multiply
    354,315.21x = 531,192.15 × 176,730.81
  4. Step 4: Simplify right side
    354,315.21x = 93,878,018,935.14
  5. Step 5: Solve for x
    x = 93,878,018,935.14/354,315.21
  6. Step 6: Final answer
    x = 264,956.22

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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.