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Finding the Fourth Proportional to 99,692,954.70, 139,771,690.50 and 99,692,954.70

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Solution

The fourth proportional to 99,692,954.70, 139,771,690.50 and 99,692,954.70 is: 139,771,690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,692,954.70 : 139,771,690.50 = 99,692,954.70 : x
  2. Step 2: Convert to fraction form
    99,692,954.70/139,771,690.50 = 99,692,954.70/x
  3. Step 3: Cross multiply
    99,692,954.70x = 139,771,690.50 × 99,692,954.70
  4. Step 4: Simplify right side
    99,692,954.70x = 13,934,252,809,358,920
  5. Step 5: Solve for x
    x = 13,934,252,809,358,920/99,692,954.70
  6. Step 6: Final answer
    x = 139,771,690.50

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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.