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Finding the Fourth Proportional to 105,778,869.60, 158,668,304.40 and 105,778,869.60

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Solution

The fourth proportional to 105,778,869.60, 158,668,304.40 and 105,778,869.60 is: 158,668,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,778,869.60 : 158,668,304.40 = 105,778,869.60 : x
  2. Step 2: Convert to fraction form
    105,778,869.60/158,668,304.40 = 105,778,869.60/x
  3. Step 3: Cross multiply
    105,778,869.60x = 158,668,304.40 × 105,778,869.60
  4. Step 4: Simplify right side
    105,778,869.60x = 16,783,753,880,780,706
  5. Step 5: Solve for x
    x = 16,783,753,880,780,706/105,778,869.60
  6. Step 6: Final answer
    x = 158,668,304.40

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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.