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Finding the Fourth Proportional to 52,492,912.20, 78,739,368.30 and 52,492,912.20

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Solution

The fourth proportional to 52,492,912.20, 78,739,368.30 and 52,492,912.20 is: 78,739,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,492,912.20 : 78,739,368.30 = 52,492,912.20 : x
  2. Step 2: Convert to fraction form
    52,492,912.20/78,739,368.30 = 52,492,912.20/x
  3. Step 3: Cross multiply
    52,492,912.20x = 78,739,368.30 × 52,492,912.20
  4. Step 4: Simplify right side
    52,492,912.20x = 4,133,258,746,855,363.50
  5. Step 5: Solve for x
    x = 4,133,258,746,855,363.50/52,492,912.20
  6. Step 6: Final answer
    x = 78,739,368.30

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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.