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Finding the Fourth Proportional to 314,730.55, 472,235.35 and 164,935.23

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Solution

The fourth proportional to 314,730.55, 472,235.35 and 164,935.23 is: 247,475.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,730.55 : 472,235.35 = 164,935.23 : x
  2. Step 2: Convert to fraction form
    314,730.55/472,235.35 = 164,935.23/x
  3. Step 3: Cross multiply
    314,730.55x = 472,235.35 × 164,935.23
  4. Step 4: Simplify right side
    314,730.55x = 77,888,246,066.38
  5. Step 5: Solve for x
    x = 77,888,246,066.38/314,730.55
  6. Step 6: Final answer
    x = 247,475.96

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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.