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Finding the Fourth Proportional to 67,157,053.60, 100,735,580.40 and 61,782,282.40

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Solution

The fourth proportional to 67,157,053.60, 100,735,580.40 and 61,782,282.40 is: 92,673,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,157,053.60 : 100,735,580.40 = 61,782,282.40 : x
  2. Step 2: Convert to fraction form
    67,157,053.60/100,735,580.40 = 61,782,282.40/x
  3. Step 3: Cross multiply
    67,157,053.60x = 100,735,580.40 × 61,782,282.40
  4. Step 4: Simplify right side
    67,157,053.60x = 6,223,674,076,000,705
  5. Step 5: Solve for x
    x = 6,223,674,076,000,705/67,157,053.60
  6. Step 6: Final answer
    x = 92,673,423.60

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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.