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Finding the Fourth Proportional to 323,636,565.60, 485,454,848.40 and 187,671,650.40

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Solution

The fourth proportional to 323,636,565.60, 485,454,848.40 and 187,671,650.40 is: 281,507,475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,636,565.60 : 485,454,848.40 = 187,671,650.40 : x
  2. Step 2: Convert to fraction form
    323,636,565.60/485,454,848.40 = 187,671,650.40/x
  3. Step 3: Cross multiply
    323,636,565.60x = 485,454,848.40 × 187,671,650.40
  4. Step 4: Simplify right side
    323,636,565.60x = 91,106,112,593,909,792
  5. Step 5: Solve for x
    x = 91,106,112,593,909,792/323,636,565.60
  6. Step 6: Final answer
    x = 281,507,475.60

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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.