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Finding the Fourth Proportional to 245,658,907.80, 368,488,361.70 and 116,518,744.80

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Solution

The fourth proportional to 245,658,907.80, 368,488,361.70 and 116,518,744.80 is: 174,778,117.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,658,907.80 : 368,488,361.70 = 116,518,744.80 : x
  2. Step 2: Convert to fraction form
    245,658,907.80/368,488,361.70 = 116,518,744.80/x
  3. Step 3: Cross multiply
    245,658,907.80x = 368,488,361.70 × 116,518,744.80
  4. Step 4: Simplify right side
    245,658,907.80x = 42,935,801,378,692,392
  5. Step 5: Solve for x
    x = 42,935,801,378,692,392/245,658,907.80
  6. Step 6: Final answer
    x = 174,778,117.20

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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.