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Finding the Fourth Proportional to 105,763.60, 145,913.52 and 67,524.60

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Solution

The fourth proportional to 105,763.60, 145,913.52 and 67,524.60 is: 93,158.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,763.60 : 145,913.52 = 67,524.60 : x
  2. Step 2: Convert to fraction form
    105,763.60/145,913.52 = 67,524.60/x
  3. Step 3: Cross multiply
    105,763.60x = 145,913.52 × 67,524.60
  4. Step 4: Simplify right side
    105,763.60x = 9,852,752,072.59
  5. Step 5: Solve for x
    x = 9,852,752,072.59/105,763.60
  6. Step 6: Final answer
    x = 93,158.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.