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Finding the Fourth Proportional to 346,798.81, 520,195.78 and 178,366.11

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Solution

The fourth proportional to 346,798.81, 520,195.78 and 178,366.11 is: 267,547.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,798.81 : 520,195.78 = 178,366.11 : x
  2. Step 2: Convert to fraction form
    346,798.81/520,195.78 = 178,366.11/x
  3. Step 3: Cross multiply
    346,798.81x = 520,195.78 × 178,366.11
  4. Step 4: Simplify right side
    346,798.81x = 92,785,297,717.02
  5. Step 5: Solve for x
    x = 92,785,297,717.02/346,798.81
  6. Step 6: Final answer
    x = 267,547.91

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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.