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Finding the Fourth Proportional to 71,000,145.60, 106,416,237.60 and 36,903,940.80

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Solution

The fourth proportional to 71,000,145.60, 106,416,237.60 and 36,903,940.80 is: 55,312,260.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,000,145.60 : 106,416,237.60 = 36,903,940.80 : x
  2. Step 2: Convert to fraction form
    71,000,145.60/106,416,237.60 = 36,903,940.80/x
  3. Step 3: Cross multiply
    71,000,145.60x = 106,416,237.60 × 36,903,940.80
  4. Step 4: Simplify right side
    71,000,145.60x = 3,927,178,532,549,133.50
  5. Step 5: Solve for x
    x = 3,927,178,532,549,133.50/71,000,145.60
  6. Step 6: Final answer
    x = 55,312,260.27

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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.