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Finding the Fourth Proportional to 314,790.47, 472,325.12 and 164,995.14

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Solution

The fourth proportional to 314,790.47, 472,325.12 and 164,995.14 is: 247,565.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,790.47 : 472,325.12 = 164,995.14 : x
  2. Step 2: Convert to fraction form
    314,790.47/472,325.12 = 164,995.14/x
  3. Step 3: Cross multiply
    314,790.47x = 472,325.12 × 164,995.14
  4. Step 4: Simplify right side
    314,790.47x = 77,931,348,474.94
  5. Step 5: Solve for x
    x = 77,931,348,474.94/314,790.47
  6. Step 6: Final answer
    x = 247,565.78

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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.