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Finding the Fourth Proportional to 99,692,964.70, 139,771,704.50 and 99,692,964.70

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Solution

The fourth proportional to 99,692,964.70, 139,771,704.50 and 99,692,964.70 is: 139,771,704.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,692,964.70 : 139,771,704.50 = 99,692,964.70 : x
  2. Step 2: Convert to fraction form
    99,692,964.70/139,771,704.50 = 99,692,964.70/x
  3. Step 3: Cross multiply
    99,692,964.70x = 139,771,704.50 × 99,692,964.70
  4. Step 4: Simplify right side
    99,692,964.70x = 13,934,255,602,777,332
  5. Step 5: Solve for x
    x = 13,934,255,602,777,332/99,692,964.70
  6. Step 6: Final answer
    x = 139,771,704.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.