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Finding the Fourth Proportional to 79,846,445.60, 119,545,719.60 and 77,606,957.60

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Solution

The fourth proportional to 79,846,445.60, 119,545,719.60 and 77,606,957.60 is: 116,192,768.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,846,445.60 : 119,545,719.60 = 77,606,957.60 : x
  2. Step 2: Convert to fraction form
    79,846,445.60/119,545,719.60 = 77,606,957.60/x
  3. Step 3: Cross multiply
    79,846,445.60x = 119,545,719.60 × 77,606,957.60
  4. Step 4: Simplify right side
    79,846,445.60x = 9,277,579,592,258,688
  5. Step 5: Solve for x
    x = 9,277,579,592,258,688/79,846,445.60
  6. Step 6: Final answer
    x = 116,192,768.79

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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.