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Finding the Fourth Proportional to 116,919,563.60, 163,956,127.60 and 116,919,563.60

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Solution

The fourth proportional to 116,919,563.60, 163,956,127.60 and 116,919,563.60 is: 163,956,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,919,563.60 : 163,956,127.60 = 116,919,563.60 : x
  2. Step 2: Convert to fraction form
    116,919,563.60/163,956,127.60 = 116,919,563.60/x
  3. Step 3: Cross multiply
    116,919,563.60x = 163,956,127.60 × 116,919,563.60
  4. Step 4: Simplify right side
    116,919,563.60x = 19,169,678,888,537,912
  5. Step 5: Solve for x
    x = 19,169,678,888,537,912/116,919,563.60
  6. Step 6: Final answer
    x = 163,956,127.60

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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.