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Finding the Fourth Proportional to 93,312,796.70, 139,969,195.05 and 86,935,504.70

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Solution

The fourth proportional to 93,312,796.70, 139,969,195.05 and 86,935,504.70 is: 130,403,257.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,796.70 : 139,969,195.05 = 86,935,504.70 : x
  2. Step 2: Convert to fraction form
    93,312,796.70/139,969,195.05 = 86,935,504.70/x
  3. Step 3: Cross multiply
    93,312,796.70x = 139,969,195.05 × 86,935,504.70
  4. Step 4: Simplify right side
    93,312,796.70x = 12,168,292,614,124,494
  5. Step 5: Solve for x
    x = 12,168,292,614,124,494/93,312,796.70
  6. Step 6: Final answer
    x = 130,403,257.05

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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.