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Finding the Fourth Proportional to 68,771,210.40, 103,038,850.80 and 32,791,946.40

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Solution

The fourth proportional to 68,771,210.40, 103,038,850.80 and 32,791,946.40 is: 49,131,670.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,771,210.40 : 103,038,850.80 = 32,791,946.40 : x
  2. Step 2: Convert to fraction form
    68,771,210.40/103,038,850.80 = 32,791,946.40/x
  3. Step 3: Cross multiply
    68,771,210.40x = 103,038,850.80 × 32,791,946.40
  4. Step 4: Simplify right side
    68,771,210.40x = 3,378,844,472,551,197
  5. Step 5: Solve for x
    x = 3,378,844,472,551,197/68,771,210.40
  6. Step 6: Final answer
    x = 49,131,670.84

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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.