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Finding the Fourth Proportional to 145,953.80, 218,930.70 and 93,465.80

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Solution

The fourth proportional to 145,953.80, 218,930.70 and 93,465.80 is: 140,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,953.80 : 218,930.70 = 93,465.80 : x
  2. Step 2: Convert to fraction form
    145,953.80/218,930.70 = 93,465.80/x
  3. Step 3: Cross multiply
    145,953.80x = 218,930.70 × 93,465.80
  4. Step 4: Simplify right side
    145,953.80x = 20,462,533,020.06
  5. Step 5: Solve for x
    x = 20,462,533,020.06/145,953.80
  6. Step 6: Final answer
    x = 140,198.70

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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.