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Finding the Fourth Proportional to 221,616,052.60, 310,772,657 and 221,616,052.60

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Solution

The fourth proportional to 221,616,052.60, 310,772,657 and 221,616,052.60 is: 310,772,657

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,616,052.60 : 310,772,657 = 221,616,052.60 : x
  2. Step 2: Convert to fraction form
    221,616,052.60/310,772,657 = 221,616,052.60/x
  3. Step 3: Cross multiply
    221,616,052.60x = 310,772,657 × 221,616,052.60
  4. Step 4: Simplify right side
    221,616,052.60x = 68,872,209,500,353,760
  5. Step 5: Solve for x
    x = 68,872,209,500,353,760/221,616,052.60
  6. Step 6: Final answer
    x = 310,772,657

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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.