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Finding the Fourth Proportional to 162,951.40, 212,070.10 and 162,951.40

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Solution

The fourth proportional to 162,951.40, 212,070.10 and 162,951.40 is: 212,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,951.40 : 212,070.10 = 162,951.40 : x
  2. Step 2: Convert to fraction form
    162,951.40/212,070.10 = 162,951.40/x
  3. Step 3: Cross multiply
    162,951.40x = 212,070.10 × 162,951.40
  4. Step 4: Simplify right side
    162,951.40x = 34,557,119,693.14
  5. Step 5: Solve for x
    x = 34,557,119,693.14/162,951.40
  6. Step 6: Final answer
    x = 212,070.10

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.