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Finding the Fourth Proportional to 70,365.93, 105,515.88 and 40,792.23

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Solution

The fourth proportional to 70,365.93, 105,515.88 and 40,792.23 is: 61,169.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,365.93 : 105,515.88 = 40,792.23 : x
  2. Step 2: Convert to fraction form
    70,365.93/105,515.88 = 40,792.23/x
  3. Step 3: Cross multiply
    70,365.93x = 105,515.88 × 40,792.23
  4. Step 4: Simplify right side
    70,365.93x = 4,304,228,045.61
  5. Step 5: Solve for x
    x = 4,304,228,045.61/70,365.93
  6. Step 6: Final answer
    x = 61,169.21

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1.5x scale

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.