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Finding the Fourth Proportional to 117,953,868.20, 176,930,802.30 and 97,798,476.20

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Solution

The fourth proportional to 117,953,868.20, 176,930,802.30 and 97,798,476.20 is: 146,697,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,953,868.20 : 176,930,802.30 = 97,798,476.20 : x
  2. Step 2: Convert to fraction form
    117,953,868.20/176,930,802.30 = 97,798,476.20/x
  3. Step 3: Cross multiply
    117,953,868.20x = 176,930,802.30 × 97,798,476.20
  4. Step 4: Simplify right side
    117,953,868.20x = 17,303,562,857,783,456
  5. Step 5: Solve for x
    x = 17,303,562,857,783,456/117,953,868.20
  6. Step 6: Final answer
    x = 146,697,714.30

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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.