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Finding the Fourth Proportional to 70,476,417.60, 105,683,133.60 and 27,331,281.60

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Solution

The fourth proportional to 70,476,417.60, 105,683,133.60 and 27,331,281.60 is: 40,984,709.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,476,417.60 : 105,683,133.60 = 27,331,281.60 : x
  2. Step 2: Convert to fraction form
    70,476,417.60/105,683,133.60 = 27,331,281.60/x
  3. Step 3: Cross multiply
    70,476,417.60x = 105,683,133.60 × 27,331,281.60
  4. Step 4: Simplify right side
    70,476,417.60x = 2,888,455,484,792,022
  5. Step 5: Solve for x
    x = 2,888,455,484,792,022/70,476,417.60
  6. Step 6: Final answer
    x = 40,984,709.26

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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.